625566225 has 48 divisors (see below), whose sum is σ = 1051807680. Its totient is φ = 328032000.

The previous prime is 625566223. The next prime is 625566229. The reversal of 625566225 is 522665526.

625566225 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 625566225 - 2¹ = 625566223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625566223) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2037522 + ... + 2037828.

It is an arithmetic number, because the mean of its divisors is an integer number (21912660).

Almost surely, 2^625566225 is an apocalyptic number.

It is an amenable number.

625566225 is a deficient number, since it is larger than the sum of its proper divisors (426241455).

625566225 is a wasteful number, since it uses less digits than its factorization.

625566225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 685 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 625566225 is about 25011.3219362752. The cubic root of 625566225 is about 855.2460903742.

The spelling of 625566225 in words is "six hundred twenty-five million, five hundred sixty-six thousand, two hundred twenty-five".