51206354310235 has 16 divisors (see below), whose sum is σ = 62607332807136. Its totient is φ = 40191952889088.

The previous prime is 51206354310233. The next prime is 51206354310239. The reversal of 51206354310235 is 53201345360215.

It is a cyclic number.

It is not a de Polignac number, because 51206354310235 - 2¹ = 51206354310233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51206354310233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71633452 + ... + 72344758.

It is an arithmetic number, because the mean of its divisors is an integer number (3912958300446).

Almost surely, 2^{51206354310235} is an apocalyptic number.

51206354310235 is a deficient number, since it is larger than the sum of its proper divisors (11400978496901).

51206354310235 is a wasteful number, since it uses less digits than its factorization.

51206354310235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983022.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 51206354310235 in words is "fifty-one trillion, two hundred six billion, three hundred fifty-four million, three hundred ten thousand, two hundred thirty-five".