51332310520 has 32 divisors (see below), whose sum is σ = 115923913920. Its totient is φ = 20457152640.

The previous prime is 51332310503. The next prime is 51332310551. The reversal of 51332310520 is 2501323315.

It is a super-2 number, since 2×51332310520² (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 7 ways as a sum of consecutive naturals, for example, 2356887 + ... + 2378566.

It is an arithmetic number, because the mean of its divisors is an integer number (3622622310).

Almost surely, 2^51332310520 is an apocalyptic number.

It is an amenable number.

51332310520 is an abundant number, since it is smaller than the sum of its proper divisors (64591603400).

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

51332310520 is a wasteful number, since it uses less digits than its factorization.

51332310520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735735 (or 4735731 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 51332310520 its reverse (2501323315), we get a palindrome (53833633835).

The spelling of 51332310520 in words is "fifty-one billion, three hundred thirty-two million, three hundred ten thousand, five hundred twenty".