631355325 has 12 divisors (see below), whose sum is σ = 1043840928. Its totient is φ = 336722800.

The previous prime is 631355287. The next prime is 631355339. The reversal of 631355325 is 523553136.

It is not a de Polignac number, because 631355325 - 2⁶ = 631355261 is a prime.

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, 4208961 + ... + 4209110.

It is an arithmetic number, because the mean of its divisors is an integer number (86986744).

Almost surely, 2^631355325 is an apocalyptic number.

It is an amenable number.

631355325 is a deficient number, since it is larger than the sum of its proper divisors (412485603).

631355325 is a wasteful number, since it uses less digits than its factorization.

631355325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8418084 (or 8418079 counting only the distinct ones).

The product of its digits is 40500, while the sum is 33.

The square root of 631355325 is about 25126.7850112186. The cubic root of 631355325 is about 857.8761931432.

The spelling of 631355325 in words is "six hundred thirty-one million, three hundred fifty-five thousand, three hundred twenty-five".