31230550525 has 6 divisors (see below), whose sum is σ = 38725882682. Its totient is φ = 24984440400.

The previous prime is 31230550523. The next prime is 31230550567. The reversal of 31230550525 is 52505503213.

It can be written as a sum of positive squares in 3 ways, for example, as 4574763769 + 26655786756 = 67637^2 + 163266^2 .

It is not a de Polignac number, because 31230550525 - 2¹ = 31230550523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230550523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 624610986 + ... + 624611035.

Almost surely, 2^31230550525 is an apocalyptic number.

It is an amenable number.

31230550525 is a deficient number, since it is larger than the sum of its proper divisors (7495332157).

31230550525 is a wasteful number, since it uses less digits than its factorization.

31230550525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249222031 (or 1249222026 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

The spelling of 31230550525 in words is "thirty-one billion, two hundred thirty million, five hundred fifty thousand, five hundred twenty-five".