15000625 has 10 divisors (see below), whose sum is σ = 18745562. Its totient is φ = 12000000.

The previous prime is 15000617. The next prime is 15000631. The reversal of 15000625 is 52600051.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 7667361 + 7333264 = 2769^2 + 2708^2 .

It is not a de Polignac number, because 15000625 - 2³ = 15000617 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 (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11376 + ... + 12625.

Almost surely, 2^15000625 is an apocalyptic number.

It is an amenable number.

15000625 is a deficient number, since it is larger than the sum of its proper divisors (3744937).

15000625 is an frugal number, since it uses more digits than its factorization.

15000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24021 (or 24006 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 15000625 is about 3873.0640325200. The cubic root of 15000625 is about 246.6246326800.

Adding to 15000625 its reverse (52600051), we get a palindrome (67600676).

It can be divided in two parts, 15000 and 625, that added together give a 6-th power (15625 = 5⁶).

The spelling of 15000625 in words is "fifteen million, six hundred twenty-five", and thus it is an aban number.