22554563 has 4 divisors (see below), whose sum is σ = 23881320. Its totient is φ = 21227808.

The previous prime is 22554541. The next prime is 22554569. The reversal of 22554563 is 36545522.

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

It is a cyclic number.

It is not a de Polignac number, because 22554563 - 2⁸ = 22554307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22554569) 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, 663353 + ... + 663386.

It is an arithmetic number, because the mean of its divisors is an integer number (5970330).

Almost surely, 2^22554563 is an apocalyptic number.

22554563 is a deficient number, since it is larger than the sum of its proper divisors (1326757).

22554563 is a wasteful number, since it uses less digits than its factorization.

22554563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326756.

The product of its digits is 36000, while the sum is 32.

The square root of 22554563 is about 4749.1644528275. The cubic root of 22554563 is about 282.5388277746.

The spelling of 22554563 in words is "twenty-two million, five hundred fifty-four thousand, five hundred sixty-three".