51020303800 has 48 divisors (see below), whose sum is σ = 119154248640. Its totient is φ = 20316587520.

The previous prime is 51020303791. The next prime is 51020303819. The reversal of 51020303800 is 830302015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 527377 + ... + 616576.

It is an arithmetic number, because the mean of its divisors is an integer number (2482380180).

Almost surely, 2^51020303800 is an apocalyptic number.

51020303800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51020303800 is an abundant number, since it is smaller than the sum of its proper divisors (68133944840).

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

51020303800 is a wasteful number, since it uses less digits than its factorization.

51020303800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144192 (or 1144183 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 51020303800 its reverse (830302015), we get a palindrome (51850605815).

The spelling of 51020303800 in words is "fifty-one billion, twenty million, three hundred three thousand, eight hundred".