22679555 has 4 divisors (see below), whose sum is σ = 27215472. Its totient is φ = 18143640.

The previous prime is 22679551. The next prime is 22679561. The reversal of 22679555 is 55597622.

22679555 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55597622 = 2 ⋅27798811.

It is not a de Polignac number, because 22679555 - 2² = 22679551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22679551) 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, 2267951 + ... + 2267960.

It is an arithmetic number, because the mean of its divisors is an integer number (6803868).

Almost surely, 2^22679555 is an apocalyptic number.

22679555 is a deficient number, since it is larger than the sum of its proper divisors (4535917).

22679555 is an equidigital number, since it uses as much as digits as its factorization.

22679555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535916.

The product of its digits is 189000, while the sum is 41.

The square root of 22679555 is about 4762.3056390786. The cubic root of 22679555 is about 283.0597875072.

The spelling of 22679555 in words is "twenty-two million, six hundred seventy-nine thousand, five hundred fifty-five".