28522113 has 8 divisors (see below), whose sum is σ = 38059008. Its totient is φ = 18999984.

The previous prime is 28522111. The next prime is 28522157. The reversal of 28522113 is 31122582.

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

It is not a de Polignac number, because 28522113 - 2¹ = 28522111 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28522111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131 + ... + 7847.

It is an arithmetic number, because the mean of its divisors is an integer number (4757376).

Almost surely, 2^28522113 is an apocalyptic number.

It is an amenable number.

28522113 is a deficient number, since it is larger than the sum of its proper divisors (9536895).

28522113 is a wasteful number, since it uses less digits than its factorization.

28522113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7383.

The product of its digits is 960, while the sum is 24.

The square root of 28522113 is about 5340.6097966431. The cubic root of 28522113 is about 305.5347172909.

Adding to 28522113 its reverse (31122582), we get a palindrome (59644695).

The spelling of 28522113 in words is "twenty-eight million, five hundred twenty-two thousand, one hundred thirteen".