22553297 has 4 divisors (see below), whose sum is σ = 24288180. Its totient is φ = 20818416.

The previous prime is 22553291. The next prime is 22553359. The reversal of 22553297 is 79235522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13366336 + 9186961 = 3656^2 + 3031^2 .

It is a cyclic number.

It is not a de Polignac number, because 22553297 - 2⁶ = 22553233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22553291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867422 + ... + 867447.

It is an arithmetic number, because the mean of its divisors is an integer number (6072045).

Almost surely, 2^22553297 is an apocalyptic number.

It is an amenable number.

22553297 is a deficient number, since it is larger than the sum of its proper divisors (1734883).

22553297 is a wasteful number, since it uses less digits than its factorization.

22553297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734882.

The product of its digits is 37800, while the sum is 35.

The square root of 22553297 is about 4749.0311643534. The cubic root of 22553297 is about 282.5335413225.

The spelling of 22553297 in words is "twenty-two million, five hundred fifty-three thousand, two hundred ninety-seven".