631055232 has 256 divisors, whose sum is σ = 2062195200. Its totient is φ = 188964864.

The previous prime is 631055219. The next prime is 631055261. The reversal of 631055232 is 232550136.

631055232 is a `hidden beast` number, since 631 + 0 + 5 + 5 + 23 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 631055196 and 631055205.

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, 1351063 + ... + 1351529.

It is an arithmetic number, because the mean of its divisors is an integer number (8055450).

Almost surely, 2^631055232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631055232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031097600).

631055232 is an abundant number, since it is smaller than the sum of its proper divisors (1431139968).

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

631055232 is a wasteful number, since it uses less digits than its factorization.

631055232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 631055232 is about 25120.8127257061. The cubic root of 631055232 is about 857.7402509726.

The spelling of 631055232 in words is "six hundred thirty-one million, fifty-five thousand, two hundred thirty-two".