15256289 has 2 divisors, whose sum is σ = 15256290. Its totient is φ = 15256288.

The previous prime is 15256273. The next prime is 15256301. The reversal of 15256289 is 98265251.

15256289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15171025 + 85264 = 3895^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 15256289 - 2⁴ = 15256273 is a prime.

It is not a weakly prime, because it can be changed into another prime (15259289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7628144 + 7628145.

It is an arithmetic number, because the mean of its divisors is an integer number (7628145).

Almost surely, 2^15256289 is an apocalyptic number.

It is an amenable number.

15256289 is a deficient number, since it is larger than the sum of its proper divisors (1).

15256289 is an equidigital number, since it uses as much as digits as its factorization.

15256289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 15256289 is about 3905.9299788911. The cubic root of 15256289 is about 248.0178674692.

The spelling of 15256289 in words is "fifteen million, two hundred fifty-six thousand, two hundred eighty-nine".