15252889 has 4 divisors (see below), whose sum is σ = 15260724. Its totient is φ = 15245056.

The previous prime is 15252883. The next prime is 15252907. The reversal of 15252889 is 98825251.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5593225 + 9659664 = 2365^2 + 3108^2 .

It is a cyclic number.

It is not a de Polignac number, because 15252889 - 2⁷ = 15252761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15252883) 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, 1509 + ... + 5725.

It is an arithmetic number, because the mean of its divisors is an integer number (3815181).

Almost surely, 2^15252889 is an apocalyptic number.

It is an amenable number.

15252889 is a deficient number, since it is larger than the sum of its proper divisors (7835).

15252889 is an equidigital number, since it uses as much as digits as its factorization.

15252889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7834.

The product of its digits is 57600, while the sum is 40.

The square root of 15252889 is about 3905.4947189825. The cubic root of 15252889 is about 247.9994417695. Note that the first 3 decimals are identical.

It can be divided in two parts, 15252 and 889, that multiplied together give a triangular number (13559028 = T₅₂₀₇).

The spelling of 15252889 in words is "fifteen million, two hundred fifty-two thousand, eight hundred eighty-nine".