531054112565320 has 64 divisors (see below), whose sum is σ = 1196541647864640. Its totient is φ = 212124886944000.

The previous prime is 531054112565293. The next prime is 531054112565321. The reversal of 531054112565320 is 23565211450135.

It is a super-2 number, since 2×531054112565320² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531054112565321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150119715 + ... + 153616525.

It is an arithmetic number, because the mean of its divisors is an integer number (18695963247885).

Almost surely, 2^{531054112565320} is an apocalyptic number.

It is an amenable number.

531054112565320 is an abundant number, since it is smaller than the sum of its proper divisors (665487535299320).

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

531054112565320 is a wasteful number, since it uses less digits than its factorization.

531054112565320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502126 (or 3502122 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 531054112565320 in words is "five hundred thirty-one trillion, fifty-four billion, one hundred twelve million, five hundred sixty-five thousand, three hundred twenty".