28514255 has 24 divisors (see below), whose sum is σ = 42989856. Its totient is φ = 17772480.

The previous prime is 28514251. The next prime is 28514257. The reversal of 28514255 is 55241582.

It is not a de Polignac number, because 28514255 - 2² = 28514251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28514251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 869 + ... + 7601.

It is an arithmetic number, because the mean of its divisors is an integer number (1791244).

Almost surely, 2^28514255 is an apocalyptic number.

28514255 is a deficient number, since it is larger than the sum of its proper divisors (14475601).

28514255 is a wasteful number, since it uses less digits than its factorization.

28514255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767 (or 6756 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 28514255 is about 5339.8740621854. The cubic root of 28514255 is about 305.5066558784.

It can be divided in two parts, 285 and 14255, that multiplied together give a triangular number (4062675 = T₂₈₅₀).

The spelling of 28514255 in words is "twenty-eight million, five hundred fourteen thousand, two hundred fifty-five".