52557231 has 16 divisors (see below), whose sum is σ = 73587456. Its totient is φ = 33302016.

The previous prime is 52557229. The next prime is 52557247. The reversal of 52557231 is 13275525.

It is not a de Polignac number, because 52557231 - 2¹ = 52557229 is a prime.

It is a super-2 number, since 2×52557231² = 5524525060774722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52557221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8911 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (4599216).

Almost surely, 2^52557231 is an apocalyptic number.

52557231 is a deficient number, since it is larger than the sum of its proper divisors (21030225).

52557231 is a wasteful number, since it uses less digits than its factorization.

52557231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862.

The product of its digits is 10500, while the sum is 30.

The square root of 52557231 is about 7249.6366115827. The cubic root of 52557231 is about 374.5796320626.

The spelling of 52557231 in words is "fifty-two million, five hundred fifty-seven thousand, two hundred thirty-one".