625722885 has 24 divisors (see below), whose sum is σ = 1109812704. Its totient is φ = 325956960.

The previous prime is 625722871. The next prime is 625722887. The reversal of 625722885 is 588227526.

It is not a de Polignac number, because 625722885 - 2⁴ = 625722869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 625722885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625722887) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 159751 + ... + 163620.

It is an arithmetic number, because the mean of its divisors is an integer number (46242196).

Almost surely, 2^625722885 is an apocalyptic number.

It is an amenable number.

625722885 is a deficient number, since it is larger than the sum of its proper divisors (484089819).

625722885 is a wasteful number, since it uses less digits than its factorization.

625722885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323425 (or 323422 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 625722885 is about 25014.4535219141. The cubic root of 625722885 is about 855.3174772577.

The spelling of 625722885 in words is "six hundred twenty-five million, seven hundred twenty-two thousand, eight hundred eighty-five".