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52744725 = 325211101211
BaseRepresentation
bin1100100100110…
…1001000010101
310200020201011100
43021031020111
5102000312400
65122300313
71210215465
oct311151025
9120221140
1052744725
1127855990
12157b7699
13ac097c7
14700dba5
15496d100
hex324d215

52744725 has 72 divisors (see below), whose sum is σ = 104573664. Its totient is φ = 25200000.

The previous prime is 52744723. The next prime is 52744729.

It is a happy number.

52744725 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 52744725 - 21 = 52744723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52744725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52744723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 249870 + ... + 250080.

It is an arithmetic number, because the mean of its divisors is an integer number (1452412).

Almost surely, 252744725 is an apocalyptic number.

52744725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52744725 is a deficient number, since it is larger than the sum of its proper divisors (51828939).

52744725 is a wasteful number, since it uses less digits than its factorization.

52744725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 331 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 52744725 is about 7262.5563681117. The cubic root of 52744725 is about 375.0245317285.

It can be divided in two parts, 5274 and 4725, that added together give a palindrome (9999).

The spelling of 52744725 in words is "fifty-two million, seven hundred forty-four thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 33 45 55 75 99 101 165 211 225 275 303 495 505 633 825 909 1055 1111 1515 1899 2321 2475 2525 3165 3333 4545 5275 5555 6963 7575 9495 9999 11605 15825 16665 20889 21311 22725 27775 34815 47475 49995 58025 63933 83325 104445 106555 174075 191799 234421 249975 319665 522225 532775 703263 958995 1172105 1598325 2109789 3516315 4794975 5860525 10548945 17581575 52744725