51500016507 has 16 divisors (see below), whose sum is σ = 69735739392. Its totient is φ = 33802947360.

The previous prime is 51500016499. The next prime is 51500016511. The reversal of 51500016507 is 70561000515.

It is not a de Polignac number, because 51500016507 - 2³ = 51500016499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51500016517) 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, 466008 + ... + 565829.

It is an arithmetic number, because the mean of its divisors is an integer number (4358483712).

Almost surely, 2^51500016507 is an apocalyptic number.

51500016507 is a deficient number, since it is larger than the sum of its proper divisors (18235722885).

51500016507 is a wasteful number, since it uses less digits than its factorization.

51500016507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032098.

The product of its (nonzero) digits is 5250, while the sum is 30.

The spelling of 51500016507 in words is "fifty-one billion, five hundred million, sixteen thousand, five hundred seven".