52231538 has 16 divisors (see below), whose sum is σ = 79453440. Its totient is φ = 25749696.

The previous prime is 52231507. The next prime is 52231549. The reversal of 52231538 is 83513225.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52231538.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53531 + ... + 54497.

It is an arithmetic number, because the mean of its divisors is an integer number (4965840).

Almost surely, 2^52231538 is an apocalyptic number.

52231538 is a deficient number, since it is larger than the sum of its proper divisors (27221902).

52231538 is a wasteful number, since it uses less digits than its factorization.

52231538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321.

The product of its digits is 7200, while the sum is 29.

The square root of 52231538 is about 7227.1389913298. The cubic root of 52231538 is about 373.8042814790.

The spelling of 52231538 in words is "fifty-two million, two hundred thirty-one thousand, five hundred thirty-eight".