55638477432659 has 8 divisors (see below), whose sum is σ = 60820139010240. Its totient is φ = 50477418884200.

The previous prime is 55638477432617. The next prime is 55638477432661. The reversal of 55638477432659 is 95623477483655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55638477432659 - 2³⁶ = 55569757955923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55638477492659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5150751629 + ... + 5150762430.

It is an arithmetic number, because the mean of its divisors is an integer number (7602517376280).

Almost surely, 2^{55638477432659} is an apocalyptic number.

55638477432659 is a deficient number, since it is larger than the sum of its proper divisors (5181661577581).

55638477432659 is a wasteful number, since it uses less digits than its factorization.

55638477432659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10301514561.

The product of its digits is 4572288000, while the sum is 74.

The spelling of 55638477432659 in words is "fifty-five trillion, six hundred thirty-eight billion, four hundred seventy-seven million, four hundred thirty-two thousand, six hundred fifty-nine".