55915585936 has 40 divisors (see below), whose sum is σ = 129196266624. Its totient is φ = 22921916160.

The previous prime is 55915585903. The next prime is 55915585987. The reversal of 55915585936 is 63958551955.

It is a happy 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, 10850605 + ... + 10855756.

Almost surely, 2^55915585936 is an apocalyptic number.

55915585936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55915585936 is an abundant number, since it is smaller than the sum of its proper divisors (73280680688).

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

55915585936 is a wasteful number, since it uses less digits than its factorization.

55915585936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21706399 (or 21706393 counting only the distinct ones).

The product of its digits is 36450000, while the sum is 61.

The spelling of 55915585936 in words is "fifty-five billion, nine hundred fifteen million, five hundred eighty-five thousand, nine hundred thirty-six".