51631354515355 has 16 divisors (see below), whose sum is σ = 62575483287744. Its totient is φ = 40893236092800.

The previous prime is 51631354515343. The next prime is 51631354515359. The reversal of 51631354515355 is 55351545313615.

It is not a de Polignac number, because 51631354515355 - 2⁷ = 51631354515227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51631354515359) 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, 3568714 + ... + 10770256.

It is an arithmetic number, because the mean of its divisors is an integer number (3910967705484).

Almost surely, 2^{51631354515355} is an apocalyptic number.

51631354515355 is a deficient number, since it is larger than the sum of its proper divisors (10944128772389).

51631354515355 is a wasteful number, since it uses less digits than its factorization.

51631354515355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7215846.

The product of its digits is 10125000, while the sum is 52.

The spelling of 51631354515355 in words is "fifty-one trillion, six hundred thirty-one billion, three hundred fifty-four million, five hundred fifteen thousand, three hundred fifty-five".