51256150500 has 96 divisors (see below), whose sum is σ = 152729216640. Its totient is φ = 13350422400.

The previous prime is 51256150499. The next prime is 51256150507. The reversal of 51256150500 is 505165215.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (51256150507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332835 + ... + 461834.

It is an arithmetic number, because the mean of its divisors is an integer number (1590929340).

Almost surely, 2^51256150500 is an apocalyptic number.

51256150500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51256150500 is an abundant number, since it is smaller than the sum of its proper divisors (101473066140).

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

51256150500 is a wasteful number, since it uses less digits than its factorization.

51256150500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794734 (or 794722 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 51256150500 in words is "fifty-one billion, two hundred fifty-six million, one hundred fifty thousand, five hundred".