52312131500 has 96 divisors (see below), whose sum is σ = 119343369600. Its totient is φ = 19993881600.

The previous prime is 52312131479. The next prime is 52312131533. The reversal of 52312131500 is 513121325.

It is a happy number.

52312131500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 14821736 + ... + 14825264.

It is an arithmetic number, because the mean of its divisors is an integer number (1243160100).

Almost surely, 2^52312131500 is an apocalyptic number.

52312131500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52312131500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59671684800).

52312131500 is an abundant number, since it is smaller than the sum of its proper divisors (67031238100).

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

52312131500 is a wasteful number, since it uses less digits than its factorization.

52312131500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860 (or 4848 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 52312131500 its reverse (513121325), we get a palindrome (52825252825).

The spelling of 52312131500 in words is "fifty-two billion, three hundred twelve million, one hundred thirty-one thousand, five hundred".