15625113 has 16 divisors (see below), whose sum is σ = 24631680. Its totient is φ = 8620416.

The previous prime is 15625109. The next prime is 15625117. The reversal of 15625113 is 31152651.

It is an interprime number because it is at equal distance from previous prime (15625109) and next prime (15625117).

It is not a de Polignac number, because 15625113 - 2² = 15625109 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15625117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12220 + ... + 13437.

It is an arithmetic number, because the mean of its divisors is an integer number (1539480).

Almost surely, 2^15625113 is an apocalyptic number.

It is an amenable number.

15625113 is a deficient number, since it is larger than the sum of its proper divisors (9006567).

15625113 is a wasteful number, since it uses less digits than its factorization.

15625113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25696.

The product of its digits is 900, while the sum is 24.

The square root of 15625113 is about 3952.8613686797. The cubic root of 15625113 is about 250.0006026652. Note that the first 3 decimals are identical.

Adding to 15625113 its reverse (31152651), we get a palindrome (46777764).

The spelling of 15625113 in words is "fifteen million, six hundred twenty-five thousand, one hundred thirteen".