15252865 has 4 divisors (see below), whose sum is σ = 18303444. Its totient is φ = 12202288.

The previous prime is 15252829. The next prime is 15252871. The reversal of 15252865 is 56825251.

15252865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10909809 + 4343056 = 3303^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 15252865 - 2¹⁵ = 15220097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15252865.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525282 + ... + 1525291.

It is an arithmetic number, because the mean of its divisors is an integer number (4575861).

Almost surely, 2^15252865 is an apocalyptic number.

It is an amenable number.

15252865 is a deficient number, since it is larger than the sum of its proper divisors (3050579).

15252865 is an equidigital number, since it uses as much as digits as its factorization.

15252865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050578.

The product of its digits is 24000, while the sum is 34.

The square root of 15252865 is about 3905.4916463872. The cubic root of 15252865 is about 247.9993116960. Note that the first 3 decimals are identical.

The spelling of 15252865 in words is "fifteen million, two hundred fifty-two thousand, eight hundred sixty-five".