630625560 has 64 divisors (see below), whose sum is σ = 1952916480. Its totient is φ = 162741120.

The previous prime is 630625559. The next prime is 630625601. The reversal of 630625560 is 65526036.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81042 + ... + 88481.

It is an arithmetic number, because the mean of its divisors is an integer number (30514320).

Almost surely, 2^630625560 is an apocalyptic number.

630625560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630625560 is an abundant number, since it is smaller than the sum of its proper divisors (1322290920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630625560 is a wasteful number, since it uses less digits than its factorization.

630625560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169568 (or 169564 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 630625560 is about 25112.2591576306. The cubic root of 630625560 is about 857.5455344473.

The spelling of 630625560 in words is "six hundred thirty million, six hundred twenty-five thousand, five hundred sixty".