31250000002 has 64 divisors (see below), whose sum is σ = 52911800928. Its totient is φ = 13747968000.

The previous prime is 31249999987. The next prime is 31250000009. The reversal of 31250000002 is 20000005213.

It can be written as a sum of positive squares in 16 ways, for example, as 1349019441 + 29900980561 = 36729^2 + 172919^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (31250000009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10207552 + ... + 10210612.

Almost surely, 2^31250000002 is an apocalyptic number.

31250000002 is a deficient number, since it is larger than the sum of its proper divisors (21661800926).

31250000002 is a wasteful number, since it uses less digits than its factorization.

31250000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335.

The product of its (nonzero) digits is 60, while the sum is 13.

Adding to 31250000002 its reverse (20000005213), we get a palindrome (51250005215).

The spelling of 31250000002 in words is "thirty-one billion, two hundred fifty million, two", and thus it is an aban number.