51005560012 has 36 divisors (see below), whose sum is σ = 101792032776. Its totient is φ = 22176320320.

The previous prime is 51005559971. The next prime is 51005560033. The reversal of 51005560012 is 21006550015.

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, 1072393 + ... + 1118944.

It is an arithmetic number, because the mean of its divisors is an integer number (2827556466).

Almost surely, 2^51005560012 is an apocalyptic number.

It is an amenable number.

51005560012 is a deficient number, since it is larger than the sum of its proper divisors (50786472764).

51005560012 is a wasteful number, since it uses less digits than its factorization.

51005560012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191398 (or 2191373 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The spelling of 51005560012 in words is "fifty-one billion, five million, five hundred sixty thousand, twelve".