31552442325 has 120 divisors (see below), whose sum is σ = 59587965888. Its totient is φ = 16501605120.

The previous prime is 31552442297. The next prime is 31552442329. The reversal of 31552442325 is 52324425513.

31552442325 is a `hidden beast` number, since 31 + 552 + 4 + 42 + 32 + 5 = 666.

It is not a de Polignac number, because 31552442325 - 2¹¹ = 31552440277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31552442325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31552442329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 42465904 + ... + 42466646.

Almost surely, 2^31552442325 is an apocalyptic number.

It is an amenable number.

31552442325 is a deficient number, since it is larger than the sum of its proper divisors (28035523563).

31552442325 is a wasteful number, since it uses less digits than its factorization.

31552442325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1131 counting only the distinct ones).

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

Adding to 31552442325 its reverse (52324425513), we get a palindrome (83876867838).

The spelling of 31552442325 in words is "thirty-one billion, five hundred fifty-two million, four hundred forty-two thousand, three hundred twenty-five".