51010560500 has 48 divisors (see below), whose sum is σ = 111434232000. Its totient is φ = 20399248800.

The previous prime is 51010560493. The next prime is 51010560509. The reversal of 51010560500 is 506501015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010560509) 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, 2579651 + ... + 2599349.

It is an arithmetic number, because the mean of its divisors is an integer number (2321546500).

Almost surely, 2^51010560500 is an apocalyptic number.

51010560500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51010560500 is an abundant number, since it is smaller than the sum of its proper divisors (60423671500).

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

51010560500 is a wasteful number, since it uses less digits than its factorization.

51010560500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24897 (or 24885 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 51010560500 in words is "fifty-one billion, ten million, five hundred sixty thousand, five hundred".