51355576430015 has 16 divisors (see below), whose sum is σ = 72400588870176. Its totient is φ = 34476470889600.

The previous prime is 51355576430009. The next prime is 51355576430069. The reversal of 51355576430015 is 51003467555315.

It is not a de Polignac number, because 51355576430015 - 2⁴ = 51355576429999 is a prime.

It is a super-2 number, since 2×51355576430015² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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, 35912989796 + ... + 35912991225.

It is an arithmetic number, because the mean of its divisors is an integer number (4525036804386).

Almost surely, 2^{51355576430015} is an apocalyptic number.

51355576430015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51355576430015 is a deficient number, since it is larger than the sum of its proper divisors (21045012440161).

51355576430015 is a wasteful number, since it uses less digits than its factorization.

51355576430015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71825981050.

The product of its (nonzero) digits is 4725000, while the sum is 50.

The spelling of 51355576430015 in words is "fifty-one trillion, three hundred fifty-five billion, five hundred seventy-six million, four hundred thirty thousand, fifteen".