51097361133855 has 16 divisors (see below), whose sum is σ = 83495262449664. Its totient is φ = 26672097726240.

The previous prime is 51097361133787. The next prime is 51097361133869. The reversal of 51097361133855 is 55833116379015.

It is not a de Polignac number, because 51097361133855 - 2²⁵ = 51097327579423 is a prime.

It is a super-2 number, since 2×51097361133855² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51097361133795 and 51097361133804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36239262511 + ... + 36239263920.

It is an arithmetic number, because the mean of its divisors is an integer number (5218453903104).

Almost surely, 2^{51097361133855} is an apocalyptic number.

51097361133855 is a deficient number, since it is larger than the sum of its proper divisors (32397901315809).

51097361133855 is a wasteful number, since it uses less digits than its factorization.

51097361133855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72478526486.

The product of its (nonzero) digits is 10206000, while the sum is 57.

The spelling of 51097361133855 in words is "fifty-one trillion, ninety-seven billion, three hundred sixty-one million, one hundred thirty-three thousand, eight hundred fifty-five".