625797980 has 24 divisors (see below), whose sum is σ = 1319183712. Its totient is φ = 249365312.

The previous prime is 625797973. The next prime is 625798009. The reversal of 625797980 is 89797526.

It is a super-2 number, since 2×625797980² = 783246223544160800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54227 + ... + 64746.

It is an arithmetic number, because the mean of its divisors is an integer number (54965988).

Almost surely, 2^625797980 is an apocalyptic number.

It is an amenable number.

625797980 is an abundant number, since it is smaller than the sum of its proper divisors (693385732).

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

625797980 is a wasteful number, since it uses less digits than its factorization.

625797980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119245 (or 119243 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 625797980 is about 25015.9545090728. The cubic root of 625797980 is about 855.3516923489.

The spelling of 625797980 in words is "six hundred twenty-five million, seven hundred ninety-seven thousand, nine hundred eighty".