22956556 has 24 divisors (see below), whose sum is σ = 47035296. Its totient is φ = 9598080.

The previous prime is 22956551. The next prime is 22956559. The reversal of 22956556 is 65565922.

It is a happy number.

It is a super-2 number, since 2×22956556² = 1054006926762272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22956551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8851 + ... + 11146.

It is an arithmetic number, because the mean of its divisors is an integer number (1959804).

Almost surely, 2^22956556 is an apocalyptic number.

It is an amenable number.

22956556 is an abundant number, since it is smaller than the sum of its proper divisors (24078740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22956556 is a wasteful number, since it uses less digits than its factorization.

22956556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20049 (or 20047 counting only the distinct ones).

The product of its digits is 162000, while the sum is 40.

The square root of 22956556 is about 4791.3000323503. The cubic root of 22956556 is about 284.2075286691.

The spelling of 22956556 in words is "twenty-two million, nine hundred fifty-six thousand, five hundred fifty-six".