28525163 has 8 divisors (see below), whose sum is σ = 28929600. Its totient is φ = 28123848.

The previous prime is 28525157. The next prime is 28525219. The reversal of 28525163 is 36152582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28525163 - 2¹⁸ = 28263019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28528163) 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 7 ways as a sum of consecutive naturals, for example, 22028 + ... + 23286.

It is an arithmetic number, because the mean of its divisors is an integer number (3616200).

Almost surely, 2^28525163 is an apocalyptic number.

28525163 is a deficient number, since it is larger than the sum of its proper divisors (404437).

28525163 is a wasteful number, since it uses less digits than its factorization.

28525163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its digits is 14400, while the sum is 32.

The square root of 28525163 is about 5340.8953369262. The cubic root of 28525163 is about 305.5456076443.

The spelling of 28525163 in words is "twenty-eight million, five hundred twenty-five thousand, one hundred sixty-three".