28556055 has 24 divisors (see below), whose sum is σ = 53997840. Its totient is φ = 13845120.

The previous prime is 28556027. The next prime is 28556081. The reversal of 28556055 is 55065582.

It is not a de Polignac number, because 28556055 - 2⁵ = 28556023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28350 + ... + 29339.

It is an arithmetic number, because the mean of its divisors is an integer number (2249910).

Almost surely, 2^28556055 is an apocalyptic number.

28556055 is a deficient number, since it is larger than the sum of its proper divisors (25441785).

28556055 is a wasteful number, since it uses less digits than its factorization.

28556055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57711 (or 57708 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 28556055 is about 5343.7865788222. The cubic root of 28556055 is about 305.6558671322.

The spelling of 28556055 in words is "twenty-eight million, five hundred fifty-six thousand, fifty-five".