22522657 has 4 divisors (see below), whose sum is σ = 23708080. Its totient is φ = 21337236.

The previous prime is 22522651. The next prime is 22522673. The reversal of 22522657 is 75622522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75622522 = 2 ⋅37811261.

It is a cyclic number.

It is not a de Polignac number, because 22522657 - 2³ = 22522649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22522651) 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 3 ways as a sum of consecutive naturals, for example, 592683 + ... + 592720.

It is an arithmetic number, because the mean of its divisors is an integer number (5927020).

Almost surely, 2^22522657 is an apocalyptic number.

It is an amenable number.

22522657 is a deficient number, since it is larger than the sum of its proper divisors (1185423).

22522657 is a wasteful number, since it uses less digits than its factorization.

22522657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185422.

The product of its digits is 16800, while the sum is 31.

The square root of 22522657 is about 4745.8041468227. The cubic root of 22522657 is about 282.4055371119.

The spelling of 22522657 in words is "twenty-two million, five hundred twenty-two thousand, six hundred fifty-seven".