28655055 has 96 divisors (see below), whose sum is σ = 60121152. Its totient is φ = 12441600.

The previous prime is 28655051. The next prime is 28655083. The reversal of 28655055 is 55055682.

It is not a de Polignac number, because 28655055 - 2² = 28655051 is a prime.

It is a super-2 number, since 2×28655055² = 1642224354106050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28655051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 392499 + ... + 392571.

It is an arithmetic number, because the mean of its divisors is an integer number (626262).

Almost surely, 2^28655055 is an apocalyptic number.

28655055 is an abundant number, since it is smaller than the sum of its proper divisors (31466097).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28655055 is a wasteful number, since it uses less digits than its factorization.

28655055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 166 counting only the distinct ones).

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

The square root of 28655055 is about 5353.0416587208. The cubic root of 28655055 is about 306.0086823116.

The spelling of 28655055 in words is "twenty-eight million, six hundred fifty-five thousand, fifty-five".