55633615994879 has 32 divisors (see below), whose sum is σ = 61033279507200. Its totient is φ = 50396996966400.

The previous prime is 55633615994861. The next prime is 55633615994947. The reversal of 55633615994879 is 97849951633655.

It is a cyclic number.

It is not a de Polignac number, because 55633615994879 - 2⁸ = 55633615994623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55633615991879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3863170079 + ... + 3863184479.

It is an arithmetic number, because the mean of its divisors is an integer number (1907289984600).

Almost surely, 2^{55633615994879} is an apocalyptic number.

55633615994879 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

55633615994879 is a deficient number, since it is larger than the sum of its proper divisors (5399663512321).

55633615994879 is a wasteful number, since it uses less digits than its factorization.

55633615994879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775.

The product of its digits is 6613488000, while the sum is 80.

The spelling of 55633615994879 in words is "fifty-five trillion, six hundred thirty-three billion, six hundred fifteen million, nine hundred ninety-four thousand, eight hundred seventy-nine".