52524521 has 12 divisors (see below), whose sum is σ = 62402688. Its totient is φ = 44061192.

The previous prime is 52524499. The next prime is 52524523. The reversal of 52524521 is 12542525.

It is a de Polignac number, because none of the positive numbers 2^k-52524521 is a prime.

It is a super-4 number, since 4×52524521⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52524523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9101 + ... + 13706.

It is an arithmetic number, because the mean of its divisors is an integer number (5200224).

Almost surely, 2^52524521 is an apocalyptic number.

It is an amenable number.

52524521 is a deficient number, since it is larger than the sum of its proper divisors (9878167).

52524521 is a wasteful number, since it uses less digits than its factorization.

52524521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22868 (or 22861 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 52524521 is about 7247.3802853169. The cubic root of 52524521 is about 374.5019069982.

The spelling of 52524521 in words is "fifty-two million, five hundred twenty-four thousand, five hundred twenty-one".