22542555 has 16 divisors (see below), whose sum is σ = 41220864. Its totient is φ = 10305120.

The previous prime is 22542547. The next prime is 22542577. The reversal of 22542555 is 55524522.

It is not a de Polignac number, because 22542555 - 2³ = 22542547 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107241 + ... + 107450.

It is an arithmetic number, because the mean of its divisors is an integer number (2576304).

Almost surely, 2^22542555 is an apocalyptic number.

22542555 is a deficient number, since it is larger than the sum of its proper divisors (18678309).

22542555 is a wasteful number, since it uses less digits than its factorization.

22542555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214706.

The product of its digits is 20000, while the sum is 30.

The square root of 22542555 is about 4747.9000621327. The cubic root of 22542555 is about 282.4886778557.

The spelling of 22542555 in words is "twenty-two million, five hundred forty-two thousand, five hundred fifty-five".