56540133998 has 16 divisors (see below), whose sum is σ = 85164534000. Its totient is φ = 28152000000.

The previous prime is 56540133977. The next prime is 56540134043. The reversal of 56540133998 is 89933104565.

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, 4260878 + ... + 4274126.

It is an arithmetic number, because the mean of its divisors is an integer number (5322783375).

Almost surely, 2^56540133998 is an apocalyptic number.

56540133998 is a deficient number, since it is larger than the sum of its proper divisors (28624400002).

56540133998 is a wasteful number, since it uses less digits than its factorization.

56540133998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22003.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 56540133998 in words is "fifty-six billion, five hundred forty million, one hundred thirty-three thousand, nine hundred ninety-eight".