55504999993 has 16 divisors (see below), whose sum is σ = 57863393280. Its totient is φ = 53177688256.

The previous prime is 55504999969. The next prime is 55504999999. The reversal of 55504999993 is 39999940555.

It is a cyclic number.

It is not a de Polignac number, because 55504999993 - 2³³ = 46915065401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55504999999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2175396 + ... + 2200762.

It is an arithmetic number, because the mean of its divisors is an integer number (3616462080).

Almost surely, 2^55504999993 is an apocalyptic number.

It is an amenable number.

55504999993 is a deficient number, since it is larger than the sum of its proper divisors (2358393287).

55504999993 is a wasteful number, since it uses less digits than its factorization.

55504999993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25976.

The product of its (nonzero) digits is 88573500, while the sum is 67.

The spelling of 55504999993 in words is "fifty-five billion, five hundred four million, nine hundred ninety-nine thousand, nine hundred ninety-three".