625536025 has 12 divisors (see below), whose sum is σ = 783664252. Its totient is φ = 495267840.

The previous prime is 625536013. The next prime is 625536049. The reversal of 625536025 is 520635526.

It can be written as a sum of positive squares in 6 ways, for example, as 94556176 + 530979849 = 9724^2 + 23043^2 .

It is not a de Polignac number, because 625536025 - 2⁹ = 625535513 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, 126552 + ... + 131401.

Almost surely, 2^625536025 is an apocalyptic number.

It is an amenable number.

625536025 is a deficient number, since it is larger than the sum of its proper divisors (158128227).

625536025 is a wasteful number, since it uses less digits than its factorization.

625536025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258060 (or 258055 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 625536025 is about 25010.7182024027. The cubic root of 625536025 is about 855.2323274575.

The spelling of 625536025 in words is "six hundred twenty-five million, five hundred thirty-six thousand, twenty-five".