55117858765 has 8 divisors (see below), whose sum is σ = 69622558560. Its totient is φ = 41773534992.

The previous prime is 55117858723. The next prime is 55117858771. The reversal of 55117858765 is 56785871155.

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

It is a cyclic number.

It is not a de Polignac number, because 55117858765 - 2⁷ = 55117858637 is a prime.

It is a super-3 number, since 3×55117858765³ (a number of 33 digits) contains 333 as substring.

It is a congruent 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, 290093899 + ... + 290094088.

It is an arithmetic number, because the mean of its divisors is an integer number (8702819820).

Almost surely, 2^55117858765 is an apocalyptic number.

It is an amenable number.

55117858765 is a deficient number, since it is larger than the sum of its proper divisors (14504699795).

55117858765 is a wasteful number, since it uses less digits than its factorization.

55117858765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580188011.

The product of its digits is 11760000, while the sum is 58.

The spelling of 55117858765 in words is "fifty-five billion, one hundred seventeen million, eight hundred fifty-eight thousand, seven hundred sixty-five".