51215835152 has 40 divisors (see below), whose sum is σ = 99851421600. Its totient is φ = 25448192000.

The previous prime is 51215835131. The next prime is 51215835193. The reversal of 51215835152 is 25153851215.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1788983 + ... + 1817385.

It is an arithmetic number, because the mean of its divisors is an integer number (2496285540).

Almost surely, 2^51215835152 is an apocalyptic number.

It is an amenable number.

51215835152 is a deficient number, since it is larger than the sum of its proper divisors (48635586448).

51215835152 is a wasteful number, since it uses less digits than its factorization.

51215835152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29111 (or 29105 counting only the distinct ones).

The product of its digits is 60000, while the sum is 38.

The spelling of 51215835152 in words is "fifty-one billion, two hundred fifteen million, eight hundred thirty-five thousand, one hundred fifty-two".