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52450551 = 338632251
BaseRepresentation
bin1100100000010…
…1010011110111
310122200202122000
43020011103313
5101411404201
65112110343
71204552026
oct310052367
9118622560
1052450551
112767496a
12156953b3
13ab3593a
146d748bd
154910d86
hex32054f7

52450551 has 16 divisors (see below), whose sum is σ = 77829120. Its totient is φ = 34911000.

The previous prime is 52450547. The next prime is 52450561. The reversal of 52450551 is 15505425.

52450551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52450551 - 22 = 52450547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52450561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22176 + ... + 24426.

It is an arithmetic number, because the mean of its divisors is an integer number (4864320).

Almost surely, 252450551 is an apocalyptic number.

52450551 is a deficient number, since it is larger than the sum of its proper divisors (25378569).

52450551 is a wasteful number, since it uses less digits than its factorization.

52450551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123 (or 3117 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 52450551 is about 7242.2752640313. The cubic root of 52450551 is about 374.3260214000.

Adding to 52450551 its reverse (15505425), we get a palindrome (67955976).

The spelling of 52450551 in words is "fifty-two million, four hundred fifty thousand, five hundred fifty-one".

Divisors: 1 3 9 27 863 2251 2589 6753 7767 20259 23301 60777 1942613 5827839 17483517 52450551