51010500000556 has 48 divisors (see below), whose sum is σ = 94159055612160. Its totient is φ = 24113413938240.

The previous prime is 51010500000539. The next prime is 51010500000557. The reversal of 51010500000556 is 65500000501015.

It is a super-2 number, since 2×51010500000556² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51010500000557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954564670 + ... + 954618106.

It is an arithmetic number, because the mean of its divisors is an integer number (1961646991920).

Almost surely, 2^{51010500000556} is an apocalyptic number.

It is an amenable number.

51010500000556 is a deficient number, since it is larger than the sum of its proper divisors (43148555611604).

51010500000556 is a wasteful number, since it uses less digits than its factorization.

51010500000556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78934 (or 78932 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 51010500000556 in words is "fifty-one trillion, ten billion, five hundred million, five hundred fifty-six", and thus it is an aban number.