631613425 has 12 divisors (see below), whose sum is σ = 783521776. Its totient is φ = 505083600.

The previous prime is 631613413. The next prime is 631613431. The reversal of 631613425 is 524316136.

It is not a de Polignac number, because 631613425 - 2¹⁷ = 631482353 is a prime.

It is a super-5 number, since 5×631613425⁵ (a number of 45 digits) contains 55555 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95062 + ... + 101488.

Almost surely, 2^631613425 is an apocalyptic number.

It is an amenable number.

631613425 is a deficient number, since it is larger than the sum of its proper divisors (151908351).

631613425 is a wasteful number, since it uses less digits than its factorization.

631613425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368 (or 10363 counting only the distinct ones).

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

The square root of 631613425 is about 25131.9204399505. The cubic root of 631613425 is about 857.9930780264.

The spelling of 631613425 in words is "six hundred thirty-one million, six hundred thirteen thousand, four hundred twenty-five".