55999999994 has 16 divisors (see below), whose sum is σ = 84322323648. Its totient is φ = 27892673952.

The previous prime is 55999999889. The next prime is 56000000011. The reversal of 55999999994 is 49999999955.

It is a Curzon 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, 978149 + ... + 1033815.

It is an arithmetic number, because the mean of its divisors is an integer number (5270145228).

Almost surely, 2^55999999994 is an apocalyptic number.

55999999994 is a deficient number, since it is larger than the sum of its proper divisors (28322323654).

55999999994 is a wasteful number, since it uses less digits than its factorization.

55999999994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57589.

The product of its digits is 4304672100, while the sum is 86.

The spelling of 55999999994 in words is "fifty-five billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-four".