22575813 has 24 divisors (see below), whose sum is σ = 34452768. Its totient is φ = 13069056.

The previous prime is 22575803. The next prime is 22575841. The reversal of 22575813 is 31857522.

It is not a de Polignac number, because 22575813 - 2⁴ = 22575797 is a prime.

It is a super-2 number, since 2×22575813² = 1019334665221938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22575803) 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 23 ways as a sum of consecutive naturals, for example, 10270 + ... + 12272.

It is an arithmetic number, because the mean of its divisors is an integer number (1435532).

Almost surely, 2^22575813 is an apocalyptic number.

It is an amenable number.

22575813 is a deficient number, since it is larger than the sum of its proper divisors (11876955).

22575813 is a wasteful number, since it uses less digits than its factorization.

22575813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2036 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 22575813 is about 4751.4011617627. The cubic root of 22575813 is about 282.6275321536.

The spelling of 22575813 in words is "twenty-two million, five hundred seventy-five thousand, eight hundred thirteen".