15251255 has 4 divisors (see below), whose sum is σ = 18301512. Its totient is φ = 12201000.

The previous prime is 15251239. The next prime is 15251267. The reversal of 15251255 is 55215251.

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

It is not a de Polignac number, because 15251255 - 2⁴ = 15251239 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1525121 + ... + 1525130.

It is an arithmetic number, because the mean of its divisors is an integer number (4575378).

Almost surely, 2^15251255 is an apocalyptic number.

15251255 is a deficient number, since it is larger than the sum of its proper divisors (3050257).

15251255 is an equidigital number, since it uses as much as digits as its factorization.

15251255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050256.

The product of its digits is 2500, while the sum is 26.

The square root of 15251255 is about 3905.2855209319. The cubic root of 15251255 is about 247.9905856208.

The spelling of 15251255 in words is "fifteen million, two hundred fifty-one thousand, two hundred fifty-five".