15055625 has 40 divisors (see below), whose sum is σ = 21649320. Its totient is φ = 10368000.

The previous prime is 15055609. The next prime is 15055631. The reversal of 15055625 is 52655051.

It can be written as a sum of positive squares in 20 ways, for example, as 14661241 + 394384 = 3829^2 + 628^2 .

It is not a de Polignac number, because 15055625 - 2⁴ = 15055609 is a prime.

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 39 ways as a sum of consecutive naturals, for example, 138071 + ... + 138179.

It is an arithmetic number, because the mean of its divisors is an integer number (541233).

Almost surely, 2^15055625 is an apocalyptic number.

It is an amenable number.

15055625 is a deficient number, since it is larger than the sum of its proper divisors (6593695).

15055625 is a wasteful number, since it uses less digits than its factorization.

15055625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 15055625 is about 3880.1578576135. The cubic root of 15055625 is about 246.9256825922.

The spelling of 15055625 in words is "fifteen million, fifty-five thousand, six hundred twenty-five".