12520526404 has 24 divisors (see below), whose sum is σ = 22321232640. Its totient is φ = 6143981376.

The previous prime is 12520526393. The next prime is 12520526411. The reversal of 12520526404 is 40462502521.

It is a super-2 number, since 2×12520526404² (a number of 21 digits) contains 22 as substring.

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, 65857 + ... + 171400.

It is an arithmetic number, because the mean of its divisors is an integer number (930051360).

Almost surely, 2^12520526404 is an apocalyptic number.

It is an amenable number.

12520526404 is a deficient number, since it is larger than the sum of its proper divisors (9800706236).

12520526404 is a wasteful number, since it uses less digits than its factorization.

12520526404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237507 (or 237505 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 12520526404 in words is "twelve billion, five hundred twenty million, five hundred twenty-six thousand, four hundred four".