51122115507 has 16 divisors (see below), whose sum is σ = 68365969920. Its totient is φ = 33979941600.

The previous prime is 51122115497. The next prime is 51122115529. The reversal of 51122115507 is 70551122115.

It is not a de Polignac number, because 51122115507 - 2¹⁴ = 51122099123 is a prime.

It is a super-2 number, since 2×51122115507² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122111507) 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, 2081157 + ... + 2105577.

It is an arithmetic number, because the mean of its divisors is an integer number (4272873120).

Almost surely, 2^51122115507 is an apocalyptic number.

51122115507 is a deficient number, since it is larger than the sum of its proper divisors (17243854413).

51122115507 is a wasteful number, since it uses less digits than its factorization.

51122115507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26474.

The product of its (nonzero) digits is 3500, while the sum is 30.

The spelling of 51122115507 in words is "fifty-one billion, one hundred twenty-two million, one hundred fifteen thousand, five hundred seven".