231536056 has 32 divisors (see below), whose sum is σ = 463914000. Its totient is φ = 107951616.

The previous prime is 231536051. The next prime is 231536083. The reversal of 231536056 is 650635132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231536051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7015 + ... + 22633.

Almost surely, 2^231536056 is an apocalyptic number.

It is an amenable number.

231536056 is an abundant number, since it is smaller than the sum of its proper divisors (232377944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231536056 is a wasteful number, since it uses less digits than its factorization.

231536056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15751 (or 15747 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 231536056 is about 15216.3088822487. The cubic root of 231536056 is about 614.0534990007.

The spelling of 231536056 in words is "two hundred thirty-one million, five hundred thirty-six thousand, fifty-six".