31250261325 has 12 divisors (see below), whose sum is σ = 51667098848. Its totient is φ = 16666806000.

The previous prime is 31250261279. The next prime is 31250261327. The reversal of 31250261325 is 52316205213.

It is not a de Polignac number, because 31250261325 - 2⁹ = 31250260813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31250261292 and 31250261301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31250261327) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 208335001 + ... + 208335150.

Almost surely, 2^31250261325 is an apocalyptic number.

It is an amenable number.

31250261325 is a deficient number, since it is larger than the sum of its proper divisors (20416837523).

31250261325 is a wasteful number, since it uses less digits than its factorization.

31250261325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416670164 (or 416670159 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 31250261325 its reverse (52316205213), we get a palindrome (83566466538).

The spelling of 31250261325 in words is "thirty-one billion, two hundred fifty million, two hundred sixty-one thousand, three hundred twenty-five".