688055925 has 48 divisors (see below), whose sum is σ = 1195459200. Its totient is φ = 348522240.

The previous prime is 688055887. The next prime is 688055941. The reversal of 688055925 is 529550886.

It is not a de Polignac number, because 688055925 - 2⁶ = 688055861 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255687 + ... + 258363.

It is an arithmetic number, because the mean of its divisors is an integer number (24905400).

Almost surely, 2^688055925 is an apocalyptic number.

It is an amenable number.

688055925 is a deficient number, since it is larger than the sum of its proper divisors (507403275).

688055925 is a wasteful number, since it uses less digits than its factorization.

688055925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862 (or 2857 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The square root of 688055925 is about 26230.8201358631. The cubic root of 688055925 is about 882.8249117267.

The spelling of 688055925 in words is "six hundred eighty-eight million, fifty-five thousand, nine hundred twenty-five".