28552875 has 32 divisors (see below), whose sum is σ = 51175488. Its totient is φ = 14054400.

The previous prime is 28552871. The next prime is 28552879. The reversal of 28552875 is 57825582.

It is an interprime number because it is at equal distance from previous prime (28552871) and next prime (28552879).

It is not a de Polignac number, because 28552875 - 2² = 28552871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28552871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1947 + ... + 7803.

It is an arithmetic number, because the mean of its divisors is an integer number (1599234).

Almost surely, 2^28552875 is an apocalyptic number.

28552875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28552875 is a deficient number, since it is larger than the sum of its proper divisors (22622613).

28552875 is a wasteful number, since it uses less digits than its factorization.

28552875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888 (or 5878 counting only the distinct ones).

The product of its digits is 224000, while the sum is 42.

The square root of 28552875 is about 5343.4890287152. The cubic root of 28552875 is about 305.6445207734.

The spelling of 28552875 in words is "twenty-eight million, five hundred fifty-two thousand, eight hundred seventy-five".