31525000084 has 6 divisors (see below), whose sum is σ = 55168750154. Its totient is φ = 15762500040.

The previous prime is 31525000079. The next prime is 31525000093. The reversal of 31525000084 is 48000052513.

It can be written as a sum of positive squares in only one way, i.e., 29694871684 + 1830128400 = 172322^2 + 42780^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3940625007 + ... + 3940625014.

Almost surely, 2^31525000084 is an apocalyptic number.

It is an amenable number.

31525000084 is a deficient number, since it is larger than the sum of its proper divisors (23643750070).

31525000084 is a wasteful number, since it uses less digits than its factorization.

31525000084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7881250025 (or 7881250023 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 31525000084 its reverse (48000052513), we get a palindrome (79525052597).

The spelling of 31525000084 in words is "thirty-one billion, five hundred twenty-five million, eighty-four", and thus it is an aban number.