625404535604 has 24 divisors (see below), whose sum is σ = 1142727613440. Its totient is φ = 298927230624.

The previous prime is 625404535571. The next prime is 625404535643. The reversal of 625404535604 is 406535404526.

It is a happy number.

It is a super-2 number, since 2×625404535604² (a number of 24 digits) 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, 1882964 + ... + 2190059.

It is an arithmetic number, because the mean of its divisors is an integer number (47613650560).

Almost surely, 2^625404535604 is an apocalyptic number.

It is an amenable number.

625404535604 is a deficient number, since it is larger than the sum of its proper divisors (517323077836).

625404535604 is a wasteful number, since it uses less digits than its factorization.

625404535604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074719 (or 4074717 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 625404535604 in words is "six hundred twenty-five billion, four hundred four million, five hundred thirty-five thousand, six hundred four".