31125000250 has 32 divisors (see below), whose sum is σ = 58383000000. Its totient is φ = 12425000400.

The previous prime is 31125000241. The next prime is 31125000301. The reversal of 31125000250 is 5200052113.

31125000250 is a nontrivial binomial coefficient, being equal to C(249500, 2).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1 + ... + 249499.

It is an arithmetic number, because the mean of its divisors is an integer number (1824468750).

Almost surely, 2^31125000250 is an apocalyptic number.

31125000250 is the 249499-th triangular number and also the 124750-th hexagonal number.

31125000250 is the 83167-th centered nonagonal number.

31125000250 is a deficient number, since it is larger than the sum of its proper divisors (27257999750).

31125000250 is a wasteful number, since it uses less digits than its factorization.

31125000250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250015 (or 250005 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

Adding to 31125000250 its reverse (5200052113), we get a palindrome (36325052363).

The spelling of 31125000250 in words is "thirty-one billion, one hundred twenty-five million, two hundred fifty", and thus it is an aban number.