52520831 has 8 divisors (see below), whose sum is σ = 58151424. Its totient is φ = 47032920.

The previous prime is 52520813. The next prime is 52520857. The reversal of 52520831 is 13802525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52520831 - 2¹⁰ = 52519807 is a prime.

It is a super-2 number, since 2×52520831² = 5516875377861122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52520831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52522831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34895 + ... + 36368.

It is an arithmetic number, because the mean of its divisors is an integer number (7268928).

Almost surely, 2^52520831 is an apocalyptic number.

52520831 is a deficient number, since it is larger than the sum of its proper divisors (5630593).

52520831 is a wasteful number, since it uses less digits than its factorization.

52520831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71341.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 52520831 is about 7247.1257060989. The cubic root of 52520831 is about 374.4931368443.

The spelling of 52520831 in words is "fifty-two million, five hundred twenty thousand, eight hundred thirty-one".