28522755 has 24 divisors (see below), whose sum is σ = 49729680. Its totient is φ = 15122880.

The previous prime is 28522733. The next prime is 28522789. The reversal of 28522755 is 55722582.

It is a de Polignac number, because none of the positive numbers 2^k-28522755 is a prime.

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, 6285 + ... + 9825.

It is an arithmetic number, because the mean of its divisors is an integer number (2072070).

Almost surely, 2^28522755 is an apocalyptic number.

28522755 is a deficient number, since it is larger than the sum of its proper divisors (21206925).

28522755 is a wasteful number, since it uses less digits than its factorization.

28522755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731 (or 3728 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 28522755 is about 5340.6699018007. The cubic root of 28522755 is about 305.5370096855.

The spelling of 28522755 in words is "twenty-eight million, five hundred twenty-two thousand, seven hundred fifty-five".