625131250 has 48 divisors (see below), whose sum is σ = 1212813000. Its totient is φ = 241360000.

The previous prime is 625131209. The next prime is 625131301. The reversal of 625131250 is 52131526.

It can be written as a sum of positive squares in 12 ways, for example, as 492351721 + 132779529 = 22189^2 + 11523^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179526 + ... + 182974.

Almost surely, 2^625131250 is an apocalyptic number.

625131250 is a deficient number, since it is larger than the sum of its proper divisors (587681750).

625131250 is an equidigital number, since it uses as much as digits as its factorization.

625131250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505 (or 3485 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 625131250 is about 25002.6248622020. The cubic root of 625131250 is about 855.0478183075.

Adding to 625131250 its reverse (52131526), we get a palindrome (677262776).

The spelling of 625131250 in words is "six hundred twenty-five million, one hundred thirty-one thousand, two hundred fifty".