51502000500 has 96 divisors (see below), whose sum is σ = 166637627520. Its totient is φ = 13733863200.

The previous prime is 51502000447. The next prime is 51502000513. The reversal of 51502000500 is 500020515.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1893982 + ... + 1920981.

It is an arithmetic number, because the mean of its divisors is an integer number (1735808620).

Almost surely, 2^51502000500 is an apocalyptic number.

51502000500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51502000500 is an abundant number, since it is smaller than the sum of its proper divisors (115135627020).

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

51502000500 is a wasteful number, since it uses less digits than its factorization.

51502000500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814991 (or 3814973 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The spelling of 51502000500 in words is "fifty-one billion, five hundred two million, five hundred", and thus it is an aban number.