625404132004 has 6 divisors (see below), whose sum is σ = 1094457231014. Its totient is φ = 312702066000.

The previous prime is 625404131999. The next prime is 625404132011. The reversal of 625404132004 is 400231404526.

It can be written as a sum of positive squares in only one way, i.e., 364127764900 + 261276367104 = 603430^2 + 511152^2 .

It is a super-2 number, since 2×625404132004² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78175516497 + ... + 78175516504.

Almost surely, 2^625404132004 is an apocalyptic number.

It is an amenable number.

625404132004 is a deficient number, since it is larger than the sum of its proper divisors (469053099010).

625404132004 is a wasteful number, since it uses less digits than its factorization.

625404132004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156351033005 (or 156351033003 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 625404132004 in words is "six hundred twenty-five billion, four hundred four million, one hundred thirty-two thousand, four".