55599598079 has 4 divisors (see below), whose sum is σ = 55620109680. Its totient is φ = 55579086480.

The previous prime is 55599598073. The next prime is 55599598091. The reversal of 55599598079 is 97089599555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55599598079 - 2⁴ = 55599598063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55599598073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10251734 + ... + 10257155.

It is an arithmetic number, because the mean of its divisors is an integer number (13905027420).

Almost surely, 2^55599598079 is an apocalyptic number.

55599598079 is a deficient number, since it is larger than the sum of its proper divisors (20511601).

55599598079 is a wasteful number, since it uses less digits than its factorization.

55599598079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20511600.

The product of its (nonzero) digits is 229635000, while the sum is 71.

The spelling of 55599598079 in words is "fifty-five billion, five hundred ninety-nine million, five hundred ninety-eight thousand, seventy-nine".