51100611056 has 40 divisors (see below), whose sum is σ = 108046321200. Its totient is φ = 23219333120.

The previous prime is 51100611053. The next prime is 51100611071. The reversal of 51100611056 is 65011600115.

It is a super-2 number, since 2×51100611056² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100611053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462080 + ... + 561888.

It is an arithmetic number, because the mean of its divisors is an integer number (2701158030).

Almost surely, 2^51100611056 is an apocalyptic number.

It is an amenable number.

51100611056 is an abundant number, since it is smaller than the sum of its proper divisors (56945710144).

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

51100611056 is a wasteful number, since it uses less digits than its factorization.

51100611056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102737 (or 102731 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 51100611056 in words is "fifty-one billion, one hundred million, six hundred eleven thousand, fifty-six".