28474255 has 16 divisors (see below), whose sum is σ = 36177120. Its totient is φ = 21454848.

The previous prime is 28474249. The next prime is 28474267. The reversal of 28474255 is 55247482.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28474255 - 2¹⁵ = 28441487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17559 + ... + 19111.

It is an arithmetic number, because the mean of its divisors is an integer number (2261070).

Almost surely, 2^28474255 is an apocalyptic number.

28474255 is a deficient number, since it is larger than the sum of its proper divisors (7702865).

28474255 is a wasteful number, since it uses less digits than its factorization.

28474255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770.

The product of its digits is 89600, while the sum is 37.

The square root of 28474255 is about 5336.1273410592. The cubic root of 28474255 is about 305.3637333891.

The spelling of 28474255 in words is "twenty-eight million, four hundred seventy-four thousand, two hundred fifty-five".