28055592 has 32 divisors (see below), whose sum is σ = 77932800. Its totient is φ = 9351792.

The previous prime is 28055581. The next prime is 28055623. The reversal of 28055592 is 29555082.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64728 + ... + 65159.

It is an arithmetic number, because the mean of its divisors is an integer number (2435400).

Almost surely, 2^28055592 is an apocalyptic number.

It is an amenable number.

28055592 is an abundant number, since it is smaller than the sum of its proper divisors (49877208).

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

28055592 is a wasteful number, since it uses less digits than its factorization.

28055592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129902 (or 129892 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 28055592 is about 5296.7529676208. The cubic root of 28055592 is about 303.8597286841.

The spelling of 28055592 in words is "twenty-eight million, fifty-five thousand, five hundred ninety-two".