22254657 has 4 divisors (see below), whose sum is σ = 29672880. Its totient is φ = 14836436.

The previous prime is 22254619. The next prime is 22254667. The reversal of 22254657 is 75645222.

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.

It is a cyclic number.

It is not a de Polignac number, because 22254657 - 2¹⁵ = 22221889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22254667) 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, 3709107 + ... + 3709112.

It is an arithmetic number, because the mean of its divisors is an integer number (7418220).

Almost surely, 2^22254657 is an apocalyptic number.

It is an amenable number.

22254657 is a deficient number, since it is larger than the sum of its proper divisors (7418223).

22254657 is an equidigital number, since it uses as much as digits as its factorization.

22254657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7418222.

The product of its digits is 33600, while the sum is 33.

The square root of 22254657 is about 4717.4841812135. The cubic root of 22254657 is about 281.2809380287.

Adding to 22254657 its reverse (75645222), we get a palindrome (97899879).

The spelling of 22254657 in words is "twenty-two million, two hundred fifty-four thousand, six hundred fifty-seven".