531245331045 has 96 divisors (see below), whose sum is σ = 1082494917504. Its totient is φ = 237609331200.

The previous prime is 531245331037. The next prime is 531245331049. The reversal of 531245331045 is 540133542135.

531245331045 is a `hidden beast` number, since 5 + 3 + 12 + 4 + 533 + 104 + 5 = 666.

531245331045 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 531245331045 - 2³ = 531245331037 is a prime.

It is a super-2 number, since 2×531245331045² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531245331049) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10444375 + ... + 10495115.

It is an arithmetic number, because the mean of its divisors is an integer number (11275988724).

Almost surely, 2^531245331045 is an apocalyptic number.

531245331045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531245331045 is an abundant number, since it is smaller than the sum of its proper divisors (551249586459).

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

531245331045 is a wasteful number, since it uses less digits than its factorization.

531245331045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52403 (or 52400 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 531245331045 in words is "five hundred thirty-one billion, two hundred forty-five million, three hundred thirty-one thousand, forty-five".