231552570252 has 24 divisors (see below), whose sum is σ = 558919998000. Its totient is φ = 74522666176.

The previous prime is 231552570233. The next prime is 231552570299. The reversal of 231552570252 is 252075255132.

It is a self number, because there is not a number n which added to its sum of digits gives 231552570252.

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, 332690127 + ... + 332690822.

It is an arithmetic number, because the mean of its divisors is an integer number (23288333250).

Almost surely, 2^231552570252 is an apocalyptic number.

It is an amenable number.

231552570252 is an abundant number, since it is smaller than the sum of its proper divisors (327367427748).

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

231552570252 is a wasteful number, since it uses less digits than its factorization.

231552570252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665380985 (or 665380983 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 39.

The spelling of 231552570252 in words is "two hundred thirty-one billion, five hundred fifty-two million, five hundred seventy thousand, two hundred fifty-two".