22520875 has 16 divisors (see below), whose sum is σ = 30270240. Its totient is φ = 16629600.

The previous prime is 22520873. The next prime is 22520881. The reversal of 22520875 is 57802522.

It is not a de Polignac number, because 22520875 - 2¹ = 22520873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22520873) 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 15 ways as a sum of consecutive naturals, for example, 5305 + ... + 8554.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 2^22520875 is an apocalyptic number.

22520875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22520875 is a deficient number, since it is larger than the sum of its proper divisors (7749365).

22520875 is a wasteful number, since it uses less digits than its factorization.

22520875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13887 (or 13877 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 22520875 is about 4745.6163983196. The cubic root of 22520875 is about 282.3980889092.

The spelling of 22520875 in words is "twenty-two million, five hundred twenty thousand, eight hundred seventy-five".