22590555 has 16 divisors (see below), whose sum is σ = 38925600. Its totient is φ = 11121408.

The previous prime is 22590541. The next prime is 22590559. The reversal of 22590555 is 55509522.

It is not a de Polignac number, because 22590555 - 2¹⁰ = 22589531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22590559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57730 + ... + 58119.

It is an arithmetic number, because the mean of its divisors is an integer number (2432850).

Almost surely, 2^22590555 is an apocalyptic number.

22590555 is a deficient number, since it is larger than the sum of its proper divisors (16335045).

22590555 is a wasteful number, since it uses less digits than its factorization.

22590555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115870.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 22590555 is about 4752.9522404501. The cubic root of 22590555 is about 282.6890373362.

The spelling of 22590555 in words is "twenty-two million, five hundred ninety thousand, five hundred fifty-five".