31500050525 has 6 divisors (see below), whose sum is σ = 39060062682. Its totient is φ = 25200040400.

The previous prime is 31500050513. The next prime is 31500050551. The reversal of 31500050525 is 52505000513.

It can be written as a sum of positive squares in 3 ways, for example, as 10721981209 + 20778069316 = 103547^2 + 144146^2 .

It is not a de Polignac number, because 31500050525 - 2¹⁰ = 31500049501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31500050494 and 31500050503.

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 in 5 ways as a sum of consecutive naturals, for example, 630000986 + ... + 630001035.

It is an arithmetic number, because the mean of its divisors is an integer number (6510010447).

Almost surely, 2^31500050525 is an apocalyptic number.

It is an amenable number.

31500050525 is a deficient number, since it is larger than the sum of its proper divisors (7560012157).

31500050525 is a wasteful number, since it uses less digits than its factorization.

31500050525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260002031 (or 1260002026 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The spelling of 31500050525 in words is "thirty-one billion, five hundred million, fifty thousand, five hundred twenty-five".