625575312 has 70 divisors (see below), whose sum is σ = 1817280822. Its totient is φ = 208521216.

The previous prime is 625575287. The next prime is 625575329. The reversal of 625575312 is 213575526.

It can be written as a sum of positive squares in only one way, i.e., 434472336 + 191102976 = 20844^2 + 13824^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 15153 + ... + 38480.

Almost surely, 2^625575312 is an apocalyptic number.

It is an amenable number.

625575312 is an abundant number, since it is smaller than the sum of its proper divisors (1191705510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625575312 is an equidigital number, since it uses as much as digits as its factorization.

625575312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53659 (or 53638 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 625575312 is about 25011.5035933468. The cubic root of 625575312 is about 855.2502314672.

The spelling of 625575312 in words is "six hundred twenty-five million, five hundred seventy-five thousand, three hundred twelve".