31525054344 has 144 divisors (see below), whose sum is σ = 99429321420. Its totient is φ = 8997246720.

The previous prime is 31525054343. The next prime is 31525054349. The reversal of 31525054344 is 44345052513.

31525054344 is a `hidden beast` number, since 3 + 15 + 250 + 54 + 344 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28720080900 + 2804973444 = 169470^2 + 52962^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 31525054299 and 31525054308.

It is not an unprimeable number, because it can be changed into a prime (31525054343) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3569454 + ... + 3578274.

Almost surely, 2^31525054344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31525054344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49714660710).

31525054344 is an abundant number, since it is smaller than the sum of its proper divisors (67904267076).

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

31525054344 is a wasteful number, since it uses less digits than its factorization.

31525054344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9860 (or 9846 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 31525054344 in words is "thirty-one billion, five hundred twenty-five million, fifty-four thousand, three hundred forty-four".