22445497 has 4 divisors (see below), whose sum is σ = 22655376. Its totient is φ = 22235620.

The previous prime is 22445483. The next prime is 22445503. The reversal of 22445497 is 79454422.

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 a de Polignac number, because none of the positive numbers 2^k-22445497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22445407) 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, 104779 + ... + 104992.

It is an arithmetic number, because the mean of its divisors is an integer number (5663844).

Almost surely, 2^22445497 is an apocalyptic number.

It is an amenable number.

22445497 is a deficient number, since it is larger than the sum of its proper divisors (209879).

22445497 is a wasteful number, since it uses less digits than its factorization.

22445497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209878.

The product of its digits is 80640, while the sum is 37.

The square root of 22445497 is about 4737.6678862073. The cubic root of 22445497 is about 282.0826719704.

The spelling of 22445497 in words is "twenty-two million, four hundred forty-five thousand, four hundred ninety-seven".