52562521 has 32 divisors (see below), whose sum is σ = 64509696. Its totient is φ = 42592000.

The previous prime is 52562509. The next prime is 52562527. The reversal of 52562521 is 12526525.

It is not a de Polignac number, because 52562521 - 2⁹ = 52562009 is a prime.

It is a super-2 number, since 2×52562521² = 5525637227750882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52562521.

It is not an unprimeable number, because it can be changed into a prime (52562527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520371 + ... + 520471.

It is an arithmetic number, because the mean of its divisors is an integer number (2015928).

Almost surely, 2^52562521 is an apocalyptic number.

It is an amenable number.

52562521 is a deficient number, since it is larger than the sum of its proper divisors (11947175).

52562521 is a wasteful number, since it uses less digits than its factorization.

52562521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 152 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 52562521 is about 7250.0014482757. The cubic root of 52562521 is about 374.5921990602.

It can be divided in two parts, 5256 and 2521, that added together give a palindrome (7777).

The spelling of 52562521 in words is "fifty-two million, five hundred sixty-two thousand, five hundred twenty-one".