22565494 has 32 divisors (see below), whose sum is σ = 41679360. Its totient is φ = 8942208.

The previous prime is 22565479. The next prime is 22565503. The reversal of 22565494 is 49456522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13239 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (1302480).

Almost surely, 2^22565494 is an apocalyptic number.

22565494 is a deficient number, since it is larger than the sum of its proper divisors (19113866).

22565494 is a wasteful number, since it uses less digits than its factorization.

22565494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its digits is 86400, while the sum is 37.

The square root of 22565494 is about 4750.3151474402. The cubic root of 22565494 is about 282.5844642625.

It can be divided in two parts, 2256 and 5494, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 22565494 in words is "twenty-two million, five hundred sixty-five thousand, four hundred ninety-four".