22530775 has 12 divisors (see below), whose sum is σ = 28036152. Its totient is φ = 17961440.

The previous prime is 22530757. The next prime is 22530803. The reversal of 22530775 is 57703522.

It is a de Polignac number, because none of the positive numbers 2^k-22530775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6504 + ... + 9346.

It is an arithmetic number, because the mean of its divisors is an integer number (2336346).

Almost surely, 2^22530775 is an apocalyptic number.

22530775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22530775 is a deficient number, since it is larger than the sum of its proper divisors (5505377).

22530775 is a wasteful number, since it uses less digits than its factorization.

22530775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170 (or 3165 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 22530775 is about 4746.6593515861. The cubic root of 22530775 is about 282.4394628422.

The spelling of 22530775 in words is "twenty-two million, five hundred thirty thousand, seven hundred seventy-five".