28536575 has 12 divisors (see below), whose sum is σ = 37248360. Its totient is φ = 21627360.

The previous prime is 28536559. The next prime is 28536577. The reversal of 28536575 is 57563582.

It is not a de Polignac number, because 28536575 - 2⁴ = 28536559 is a prime.

It is a super-2 number, since 2×28536575² = 1628672225461250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28536577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29564 + ... + 30513.

It is an arithmetic number, because the mean of its divisors is an integer number (3104030).

Almost surely, 2^28536575 is an apocalyptic number.

28536575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28536575 is a deficient number, since it is larger than the sum of its proper divisors (8711785).

28536575 is a wasteful number, since it uses less digits than its factorization.

28536575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60106 (or 60101 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 28536575 is about 5341.9635902915. The cubic root of 28536575 is about 305.5863485343.

The spelling of 28536575 in words is "twenty-eight million, five hundred thirty-six thousand, five hundred seventy-five".