22956557 has 8 divisors (see below), whose sum is σ = 25128600. Its totient is φ = 20842560.

The previous prime is 22956551. The next prime is 22956559. The reversal of 22956557 is 75565922.

It can be written as a sum of positive squares in 4 ways, for example, as 1371241 + 21585316 = 1171^2 + 4646^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22956557 - 2⁸ = 22956301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22956551) 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, 13682 + ... + 15267.

It is an arithmetic number, because the mean of its divisors is an integer number (3141075).

Almost surely, 2^22956557 is an apocalyptic number.

It is an amenable number.

22956557 is a deficient number, since it is larger than the sum of its proper divisors (2172043).

22956557 is a wasteful number, since it uses less digits than its factorization.

22956557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29023.

The product of its digits is 189000, while the sum is 41.

The square root of 22956557 is about 4791.3001367061. The cubic root of 22956557 is about 284.2075327958.

The spelling of 22956557 in words is "twenty-two million, nine hundred fifty-six thousand, five hundred fifty-seven".