625750656 has 32 divisors (see below), whose sum is σ = 1662151200. Its totient is φ = 208583424.

The previous prime is 625750633. The next prime is 625750667. The reversal of 625750656 is 656057526.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814396 + ... + 815163.

It is an arithmetic number, because the mean of its divisors is an integer number (51942225).

Almost surely, 2^625750656 is an apocalyptic number.

It is an amenable number.

625750656 is an abundant number, since it is smaller than the sum of its proper divisors (1036400544).

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

625750656 is a wasteful number, since it uses less digits than its factorization.

625750656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629576 (or 1629564 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 625750656 is about 25015.0086148296. The cubic root of 625750656 is about 855.3301307134.

The spelling of 625750656 in words is "six hundred twenty-five million, seven hundred fifty thousand, six hundred fifty-six".