51006500700 has 72 divisors (see below), whose sum is σ = 147606562992. Its totient is φ = 13599175680.

The previous prime is 51006500693. The next prime is 51006500717. The reversal of 51006500700 is 700560015.

It is a super-2 number, since 2×51006500700² (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 23 ways as a sum of consecutive naturals, for example, 2008482 + ... + 2033718.

Almost surely, 2^51006500700 is an apocalyptic number.

51006500700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51006500700 is an abundant number, since it is smaller than the sum of its proper divisors (96600062292).

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

51006500700 is a wasteful number, since it uses less digits than its factorization.

51006500700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31991 (or 31984 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The spelling of 51006500700 in words is "fifty-one billion, six million, five hundred thousand, seven hundred".