630925825 has 6 divisors (see below), whose sum is σ = 782348054. Its totient is φ = 504740640.

The previous prime is 630925817. The next prime is 630925847. The reversal of 630925825 is 528529036.

It can be written as a sum of positive squares in 3 ways, for example, as 161900176 + 469025649 = 12724^2 + 21657^2 .

It is not a de Polignac number, because 630925825 - 2³ = 630925817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12618492 + ... + 12618541.

Almost surely, 2^630925825 is an apocalyptic number.

It is an amenable number.

630925825 is a deficient number, since it is larger than the sum of its proper divisors (151422229).

630925825 is a wasteful number, since it uses less digits than its factorization.

630925825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25237043 (or 25237038 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 630925825 is about 25118.2369007062. The cubic root of 630925825 is about 857.6816162841.

The spelling of 630925825 in words is "six hundred thirty million, nine hundred twenty-five thousand, eight hundred twenty-five".