625844625 has 32 divisors (see below), whose sum is σ = 1190182656. Its totient is φ = 286099200.

The previous prime is 625844573. The next prime is 625844657. The reversal of 625844625 is 526448526.

It is a happy number.

It is not a de Polignac number, because 625844625 - 2⁶ = 625844561 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 116584 + ... + 121833.

It is an arithmetic number, because the mean of its divisors is an integer number (37193208).

Almost surely, 2^625844625 is an apocalyptic number.

It is an amenable number.

625844625 is a deficient number, since it is larger than the sum of its proper divisors (564338031).

625844625 is a wasteful number, since it uses less digits than its factorization.

625844625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238442 (or 238432 counting only the distinct ones).

The product of its digits is 460800, while the sum is 42.

The square root of 625844625 is about 25016.8867967219. The cubic root of 625844625 is about 855.3729435565.

The spelling of 625844625 in words is "six hundred twenty-five million, eight hundred forty-four thousand, six hundred twenty-five".