630902425 has 6 divisors (see below), whose sum is σ = 782319038. Its totient is φ = 504721920.

The previous prime is 630902417. The next prime is 630902431. The reversal of 630902425 is 524209036.

It can be written as a sum of positive squares in 3 ways, for example, as 20466576 + 610435849 = 4524^2 + 24707^2 .

It is not a de Polignac number, because 630902425 - 2³ = 630902417 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, 12618024 + ... + 12618073.

Almost surely, 2^630902425 is an apocalyptic number.

It is an amenable number.

630902425 is a deficient number, since it is larger than the sum of its proper divisors (151416613).

630902425 is a wasteful number, since it uses less digits than its factorization.

630902425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25236107 (or 25236102 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 630902425 is about 25117.7710993631. The cubic root of 630902425 is about 857.6710128201.

The spelling of 630902425 in words is "six hundred thirty million, nine hundred two thousand, four hundred twenty-five".