Search a number
-
+
52570725 = 3524316301
BaseRepresentation
bin1100100010001…
…0101001100101
310122220212110220
43020202221211
5101424230400
65114434553
71205562264
oct310425145
9118825426
1052570725
1127747189
1215732a59
13ab7854c
146da65db
1549367a0
hex3222a65

52570725 has 24 divisors (see below), whose sum is σ = 88943712. Its totient is φ = 27384000.

The previous prime is 52570723. The next prime is 52570741. The reversal of 52570725 is 52707525.

It is not a de Polignac number, because 52570725 - 21 = 52570723 is a prime.

It is a super-2 number, since 2×525707252 = 5527362254051250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52570723) 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 23 ways as a sum of consecutive naturals, for example, 4926 + ... + 11375.

It is an arithmetic number, because the mean of its divisors is an integer number (3705988).

Almost surely, 252570725 is an apocalyptic number.

It is an amenable number.

52570725 is a deficient number, since it is larger than the sum of its proper divisors (36372987).

52570725 is a wasteful number, since it uses less digits than its factorization.

52570725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16357 (or 16352 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 52570725 is about 7250.5672191905. The cubic root of 52570725 is about 374.6116869289.

The spelling of 52570725 in words is "fifty-two million, five hundred seventy thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 43 75 129 215 645 1075 3225 16301 48903 81505 244515 407525 700943 1222575 2102829 3504715 10514145 17523575 52570725