51100550012 has 48 divisors (see below), whose sum is σ = 95637400320. Its totient is φ = 23832724608.

The previous prime is 51100549979. The next prime is 51100550023. The reversal of 51100550012 is 21005500115.

It is a happy number.

It is a super-2 number, since 2×51100550012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2533664 + ... + 2553752.

It is an arithmetic number, because the mean of its divisors is an integer number (1992445840).

Almost surely, 2^51100550012 is an apocalyptic number.

It is an amenable number.

51100550012 is a deficient number, since it is larger than the sum of its proper divisors (44536850308).

51100550012 is a wasteful number, since it uses less digits than its factorization.

51100550012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20802 (or 20800 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The spelling of 51100550012 in words is "fifty-one billion, one hundred million, five hundred fifty thousand, twelve".