531315112050 has 72 divisors (see below), whose sum is σ = 1438363452240. Its totient is φ = 140602456800.

The previous prime is 531315112007. The next prime is 531315112063. The reversal of 531315112050 is 50211513135.

531315112050 is a `hidden beast` number, since 53 + 1 + 31 + 511 + 20 + 50 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4447540 + ... + 4565439.

It is an arithmetic number, because the mean of its divisors is an integer number (19977270170).

Almost surely, 2^531315112050 is an apocalyptic number.

531315112050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

531315112050 is an abundant number, since it is smaller than the sum of its proper divisors (907048340190).

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

531315112050 is a wasteful number, since it uses less digits than its factorization.

531315112050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9013128 (or 9013120 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 531315112050 its reverse (50211513135), we get a palindrome (581526625185).

The spelling of 531315112050 in words is "five hundred thirty-one billion, three hundred fifteen million, one hundred twelve thousand, fifty".