22455579 has 4 divisors (see below), whose sum is σ = 29940776. Its totient is φ = 14970384.

The previous prime is 22455557. The next prime is 22455581. The reversal of 22455579 is 97555422.

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

It is not a de Polignac number, because 22455579 - 2⁵ = 22455547 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22455509) 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, 3742594 + ... + 3742599.

It is an arithmetic number, because the mean of its divisors is an integer number (7485194).

Almost surely, 2^22455579 is an apocalyptic number.

22455579 is a deficient number, since it is larger than the sum of its proper divisors (7485197).

22455579 is an equidigital number, since it uses as much as digits as its factorization.

22455579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7485196.

The product of its digits is 126000, while the sum is 39.

The square root of 22455579 is about 4738.7317923681. The cubic root of 22455579 is about 282.1249006602.

The spelling of 22455579 in words is "twenty-two million, four hundred fifty-five thousand, five hundred seventy-nine".