28562255 has 4 divisors (see below), whose sum is σ = 34274712. Its totient is φ = 22849800.

The previous prime is 28562249. The next prime is 28562267. The reversal of 28562255 is 55226582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55226582 = 2 ⋅27613291.

It is not a de Polignac number, because 28562255 - 2⁴ = 28562239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856221 + ... + 2856230.

It is an arithmetic number, because the mean of its divisors is an integer number (8568678).

Almost surely, 2^28562255 is an apocalyptic number.

28562255 is a deficient number, since it is larger than the sum of its proper divisors (5712457).

28562255 is an equidigital number, since it uses as much as digits as its factorization.

28562255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712456.

The product of its digits is 48000, while the sum is 35.

The square root of 28562255 is about 5344.3666603256. The cubic root of 28562255 is about 305.6779865419.

The spelling of 28562255 in words is "twenty-eight million, five hundred sixty-two thousand, two hundred fifty-five".