51375585215100 has 36 divisors (see below), whose sum is σ = 148646693223224. Its totient is φ = 13700156057280.

The previous prime is 51375585215093. The next prime is 51375585215137. The reversal of 51375585215100 is 151258557315.

It is a self number, because there is not a number n which added to its sum of digits gives 51375585215100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85625975059 + ... + 85625975658.

Almost surely, 2^{51375585215100} is an apocalyptic number.

51375585215100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51375585215100 is an abundant number, since it is smaller than the sum of its proper divisors (97271108008124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51375585215100 is a wasteful number, since it uses less digits than its factorization.

51375585215100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171251950734 (or 171251950727 counting only the distinct ones).

The product of its (nonzero) digits is 1050000, while the sum is 48.

The spelling of 51375585215100 in words is "fifty-one trillion, three hundred seventy-five billion, five hundred eighty-five million, two hundred fifteen thousand, one hundred".