51415531324455 has 16 divisors (see below), whose sum is σ = 84488224447584. Its totient is φ = 26680491930240.

The previous prime is 51415531324403. The next prime is 51415531324481. The reversal of 51415531324455 is 55442313551415.

It is not a de Polignac number, because 51415531324455 - 2¹⁹ = 51415530800167 is a prime.

It is a super-2 number, since 2×51415531324455² (a number of 28 digits) contains 22 as substring.

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, 46320297936 + ... + 46320299045.

It is an arithmetic number, because the mean of its divisors is an integer number (5280514027974).

Almost surely, 2^{51415531324455} is an apocalyptic number.

51415531324455 is a deficient number, since it is larger than the sum of its proper divisors (33072693123129).

51415531324455 is a wasteful number, since it uses less digits than its factorization.

51415531324455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92640597026.

The product of its digits is 3600000, while the sum is 48.

The spelling of 51415531324455 in words is "fifty-one trillion, four hundred fifteen billion, five hundred thirty-one million, three hundred twenty-four thousand, four hundred fifty-five".