625430688 has 48 divisors (see below), whose sum is σ = 1644572160. Its totient is φ = 208119296.

The previous prime is 625430681. The next prime is 625430717. The reversal of 625430688 is 886034526.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (625430681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53953 + ... + 64511.

It is an arithmetic number, because the mean of its divisors is an integer number (34261920).

Almost surely, 2^625430688 is an apocalyptic number.

It is an amenable number.

625430688 is an abundant number, since it is smaller than the sum of its proper divisors (1019141472).

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

625430688 is a wasteful number, since it uses less digits than its factorization.

625430688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11189 (or 11181 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 625430688 is about 25008.6122765738. The cubic root of 625430688 is about 855.1843192100.

The spelling of 625430688 in words is "six hundred twenty-five million, four hundred thirty thousand, six hundred eighty-eight".