28855325 has 12 divisors (see below), whose sum is σ = 35973888. Its totient is φ = 22959600.

The previous prime is 28855297. The next prime is 28855381. The reversal of 28855325 is 52355882.

It is not a de Polignac number, because 28855325 - 2²⁰ = 27806749 is a prime.

It is a super-4 number, since 4×28855325⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1754 + ... + 7796.

It is an arithmetic number, because the mean of its divisors is an integer number (2997824).

Almost surely, 2^28855325 is an apocalyptic number.

28855325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28855325 is a deficient number, since it is larger than the sum of its proper divisors (7118563).

28855325 is a wasteful number, since it uses less digits than its factorization.

28855325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244 (or 6239 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 28855325 is about 5371.7152754032. The cubic root of 28855325 is about 306.7199255063.

The spelling of 28855325 in words is "twenty-eight million, eight hundred fifty-five thousand, three hundred twenty-five".