55811935938 has 32 divisors (see below), whose sum is σ = 121810164480. Its totient is φ = 16907337360.

The previous prime is 55811935931. The next prime is 55811935967. The reversal of 55811935938 is 83953911855.

It is a super-2 number, since 2×55811935938² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55811935931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77673 + ... + 343011.

It is an arithmetic number, because the mean of its divisors is an integer number (3806567640).

Almost surely, 2^55811935938 is an apocalyptic number.

55811935938 is an abundant number, since it is smaller than the sum of its proper divisors (65998228542).

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

55811935938 is a wasteful number, since it uses less digits than its factorization.

55811935938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268542.

The product of its digits is 5832000, while the sum is 57.

The spelling of 55811935938 in words is "fifty-five billion, eight hundred eleven million, nine hundred thirty-five thousand, nine hundred thirty-eight".