52531215 has 32 divisors (see below), whose sum is σ = 93436416. Its totient is φ = 24984960.

The previous prime is 52531189. The next prime is 52531247. The reversal of 52531215 is 51213525.

It is a happy number.

It is not a de Polignac number, because 52531215 - 2⁵ = 52531183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5742 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (2919888).

Almost surely, 2^52531215 is an apocalyptic number.

52531215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

52531215 is a deficient number, since it is larger than the sum of its proper divisors (40905201).

52531215 is a wasteful number, since it uses less digits than its factorization.

52531215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079.

The product of its digits is 1500, while the sum is 24.

The square root of 52531215 is about 7247.8420926507. The cubic root of 52531215 is about 374.5178158171.

The spelling of 52531215 in words is "fifty-two million, five hundred thirty-one thousand, two hundred fifteen".