631032925 has 12 divisors (see below), whose sum is σ = 783163540. Its totient is φ = 504385920.

The previous prime is 631032889. The next prime is 631032943. The reversal of 631032925 is 529230136.

It can be written as a sum of positive squares in 6 ways, for example, as 179640409 + 451392516 = 13403^2 + 21246^2 .

It is not a de Polignac number, because 631032925 - 2⁷ = 631032797 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19921 + ... + 40729.

Almost surely, 2^631032925 is an apocalyptic number.

It is an amenable number.

631032925 is a deficient number, since it is larger than the sum of its proper divisors (152130615).

631032925 is a wasteful number, since it uses less digits than its factorization.

631032925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22032 (or 22027 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 631032925 is about 25120.3687273893. The cubic root of 631032925 is about 857.7301441777.

The spelling of 631032925 in words is "six hundred thirty-one million, thirty-two thousand, nine hundred twenty-five".