22555667 has 2 divisors, whose sum is σ = 22555668. Its totient is φ = 22555666.

The previous prime is 22555639. The next prime is 22555703. The reversal of 22555667 is 76655522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22555667 - 2⁸ = 22555411 is a prime.

It is a super-2 number, since 2×22555667² = 1017516227629778, which contains 22 as substring.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 22555667.

It is not a weakly prime, because it can be changed into another prime (22555627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277833 + 11277834.

It is an arithmetic number, because the mean of its divisors is an integer number (11277834).

Almost surely, 2^22555667 is an apocalyptic number.

22555667 is a deficient number, since it is larger than the sum of its proper divisors (1).

22555667 is an equidigital number, since it uses as much as digits as its factorization.

22555667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 38.

The square root of 22555667 is about 4749.2806823771. The cubic root of 22555667 is about 282.5434375997.

The spelling of 22555667 in words is "twenty-two million, five hundred fifty-five thousand, six hundred sixty-seven".