55534447994 has 16 divisors (see below), whose sum is σ = 84147917568. Its totient is φ = 27485382672.

The previous prime is 55534447979. The next prime is 55534448023. The reversal of 55534447994 is 49974443555.

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, 412184 + ... + 530060.

It is an arithmetic number, because the mean of its divisors is an integer number (5259244848).

Almost surely, 2^55534447994 is an apocalyptic number.

55534447994 is a deficient number, since it is larger than the sum of its proper divisors (28613469574).

55534447994 is a wasteful number, since it uses less digits than its factorization.

55534447994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120269.

The product of its digits is 54432000, while the sum is 59.

The spelling of 55534447994 in words is "fifty-five billion, five hundred thirty-four million, four hundred forty-seven thousand, nine hundred ninety-four".