627641225 has 12 divisors (see below), whose sum is σ = 788938716. Its totient is φ = 495233280.

The previous prime is 627641213. The next prime is 627641257. The reversal of 627641225 is 522146726.

It can be written as a sum of positive squares in 6 ways, for example, as 35010889 + 592630336 = 5917^2 + 24344^2 .

It is not a de Polignac number, because 627641225 - 2²⁰ = 626592649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170132 + ... + 173781.

It is an arithmetic number, because the mean of its divisors is an integer number (65744893).

Almost surely, 2^627641225 is an apocalyptic number.

It is an amenable number.

627641225 is a deficient number, since it is larger than the sum of its proper divisors (161297491).

627641225 is a wasteful number, since it uses less digits than its factorization.

627641225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343996 (or 343991 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 627641225 is about 25052.7688090558. The cubic root of 627641225 is about 856.1906624126.

The spelling of 627641225 in words is "six hundred twenty-seven million, six hundred forty-one thousand, two hundred twenty-five".