28002552 has 16 divisors (see below), whose sum is σ = 70006440. Its totient is φ = 9334176.

The previous prime is 28002551. The next prime is 28002593. The reversal of 28002552 is 25520082.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1166773 = 28002552 / (2 + 8 + 0 + 0 + 2 + 5 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28002551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583363 + ... + 583410.

Almost surely, 2^28002552 is an apocalyptic number.

It is an amenable number.

28002552 is an abundant number, since it is smaller than the sum of its proper divisors (42003888).

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

28002552 is a wasteful number, since it uses less digits than its factorization.

28002552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166782 (or 1166778 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 28002552 is about 5291.7437579686. The cubic root of 28002552 is about 303.6681223538.

The spelling of 28002552 in words is "twenty-eight million, two thousand, five hundred fifty-two".