51175261320 has 32 divisors (see below), whose sum is σ = 153525784320. Its totient is φ = 13646736320.

The previous prime is 51175261301. The next prime is 51175261331. The reversal of 51175261320 is 2316257115.

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, 213230136 + ... + 213230375.

It is an arithmetic number, because the mean of its divisors is an integer number (4797680760).

Almost surely, 2^51175261320 is an apocalyptic number.

It is an amenable number.

51175261320 is an abundant number, since it is smaller than the sum of its proper divisors (102350523000).

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

51175261320 is a wasteful number, since it uses less digits than its factorization.

51175261320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426460525 (or 426460521 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 51175261320 in words is "fifty-one billion, one hundred seventy-five million, two hundred sixty-one thousand, three hundred twenty".