15252665 has 4 divisors (see below), whose sum is σ = 18303204. Its totient is φ = 12202128.

The previous prime is 15252647. The next prime is 15252667. The reversal of 15252665 is 56625251.

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 5895184 + 9357481 = 2428^2 + 3059^2 .

It is a cyclic number.

It is not a de Polignac number, because 15252665 - 2¹⁶ = 15187129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15252667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525262 + ... + 1525271.

It is an arithmetic number, because the mean of its divisors is an integer number (4575801).

Almost surely, 2^15252665 is an apocalyptic number.

It is an amenable number.

15252665 is a deficient number, since it is larger than the sum of its proper divisors (3050539).

15252665 is an equidigital number, since it uses as much as digits as its factorization.

15252665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050538.

The product of its digits is 18000, while the sum is 32.

The square root of 15252665 is about 3905.4660413323. The cubic root of 15252665 is about 247.9982277449.

The spelling of 15252665 in words is "fifteen million, two hundred fifty-two thousand, six hundred sixty-five".