28560255 has 32 divisors (see below), whose sum is σ = 49434624. Its totient is φ = 14025216.

The previous prime is 28560251. The next prime is 28560353. The reversal of 28560255 is 55206582.

It is not a de Polignac number, because 28560255 - 2² = 28560251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28560251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10794 + ... + 13176.

It is an arithmetic number, because the mean of its divisors is an integer number (1544832).

Almost surely, 2^28560255 is an apocalyptic number.

28560255 is a deficient number, since it is larger than the sum of its proper divisors (20874369).

28560255 is a wasteful number, since it uses less digits than its factorization.

28560255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 28560255 is about 5344.1795441396. The cubic root of 28560255 is about 305.6708515982.

The spelling of 28560255 in words is "twenty-eight million, five hundred sixty thousand, two hundred fifty-five".