28255252 has 12 divisors (see below), whose sum is σ = 49553280. Its totient is φ = 14097176.

The previous prime is 28255237. The next prime is 28255267. The reversal of 28255252 is 25255282.

It is an interprime number because it is at equal distance from previous prime (28255237) and next prime (28255267).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5458 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (4129440).

Almost surely, 2^28255252 is an apocalyptic number.

It is an amenable number.

28255252 is a deficient number, since it is larger than the sum of its proper divisors (21298028).

28255252 is a wasteful number, since it uses less digits than its factorization.

28255252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15230 (or 15228 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 28255252 is about 5315.5669500064. The cubic root of 28255252 is about 304.5788400104.

The spelling of 28255252 in words is "twenty-eight million, two hundred fifty-five thousand, two hundred fifty-two".