15323255 has 4 divisors (see below), whose sum is σ = 18387912. Its totient is φ = 12258600.

The previous prime is 15323237. The next prime is 15323257. The reversal of 15323255 is 55232351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55232351 = 131 ⋅421621.

It is not a de Polignac number, because 15323255 - 2¹⁰ = 15322231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15323257) 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, 1532321 + ... + 1532330.

It is an arithmetic number, because the mean of its divisors is an integer number (4596978).

Almost surely, 2^15323255 is an apocalyptic number.

15323255 is a deficient number, since it is larger than the sum of its proper divisors (3064657).

15323255 is an equidigital number, since it uses as much as digits as its factorization.

15323255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064656.

The product of its digits is 4500, while the sum is 26.

The square root of 15323255 is about 3914.4929428982. The cubic root of 15323255 is about 248.3802212663.

The spelling of 15323255 in words is "fifteen million, three hundred twenty-three thousand, two hundred fifty-five".