22554479 has 2 divisors, whose sum is σ = 22554480. Its totient is φ = 22554478.

The previous prime is 22554457. The next prime is 22554491. The reversal of 22554479 is 97445522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22554479 - 2²⁰ = 21505903 is a prime.

It is a super-2 number, since 2×22554479² = 1017409045922882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22554409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277239 + 11277240.

It is an arithmetic number, because the mean of its divisors is an integer number (11277240).

Almost surely, 2^22554479 is an apocalyptic number.

22554479 is a deficient number, since it is larger than the sum of its proper divisors (1).

22554479 is an equidigital number, since it uses as much as digits as its factorization.

22554479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 22554479 is about 4749.1556091583. The cubic root of 22554479 is about 282.5384770208.

The spelling of 22554479 in words is "twenty-two million, five hundred fifty-four thousand, four hundred seventy-nine".