28555264 has 48 divisors (see below), whose sum is σ = 58181760. Its totient is φ = 14008320.

The previous prime is 28555253. The next prime is 28555301. The reversal of 28555264 is 46255582.

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, 149409 + ... + 149599.

It is an arithmetic number, because the mean of its divisors is an integer number (1212120).

Almost surely, 2^28555264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28555264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29090880).

28555264 is an abundant number, since it is smaller than the sum of its proper divisors (29626496).

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

28555264 is an equidigital number, since it uses as much as digits as its factorization.

28555264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 266 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The square root of 28555264 is about 5343.7125671204. The cubic root of 28555264 is about 305.6530448934.

The spelling of 28555264 in words is "twenty-eight million, five hundred fifty-five thousand, two hundred sixty-four".