15224256 has 42 divisors (see below), whose sum is σ = 43639232. Its totient is φ = 5074560.

The previous prime is 15224249. The next prime is 15224257. The reversal of 15224256 is 65242251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15224257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12640 + ... + 13791.

Almost surely, 2^15224256 is an apocalyptic number.

15224256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15224256 is an abundant number, since it is smaller than the sum of its proper divisors (28414976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15224256 is a wasteful number, since it uses less digits than its factorization.

15224256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26449 (or 26436 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 15224256 is about 3901.8272642443. The cubic root of 15224256 is about 247.8441615466.

It can be divided in two parts, 1522 and 4256, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 15224256 in words is "fifteen million, two hundred twenty-four thousand, two hundred fifty-six".