625000625 has 20 divisors (see below), whose sum is σ = 788813124. Its totient is φ = 495000000.

The previous prime is 625000603. The next prime is 625000667. The reversal of 625000625 is 526000526.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 135396496 + 489604129 = 11636^2 + 22127^2 .

It is not a de Polignac number, because 625000625 - 2⁶ = 625000561 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 625000594 and 625000603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58175 + ... + 68075.

Almost surely, 2^625000625 is an apocalyptic number.

It is an amenable number.

625000625 is a deficient number, since it is larger than the sum of its proper divisors (163812499).

625000625 is an equidigital number, since it uses as much as digits as its factorization.

625000625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022 (or 10007 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 625000625 is about 25000.0124999969. The cubic root of 625000625 is about 854.9882583342.

Subtracting from 625000625 its reverse (526000526), we obtain a palindrome (99000099).

The spelling of 625000625 in words is "six hundred twenty-five million, six hundred twenty-five", and thus it is an aban number.