22520566 has 8 divisors (see below), whose sum is σ = 33897024. Its totient is φ = 11221560.

The previous prime is 22520557. The next prime is 22520581. The reversal of 22520566 is 66502522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18630 + ... + 19801.

It is an arithmetic number, because the mean of its divisors is an integer number (4237128).

Almost surely, 2^22520566 is an apocalyptic number.

22520566 is a deficient number, since it is larger than the sum of its proper divisors (11376458).

22520566 is a wasteful number, since it uses less digits than its factorization.

22520566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38726.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 22520566 is about 4745.5838418471. The cubic root of 22520566 is about 282.3967973459.

The spelling of 22520566 in words is "twenty-two million, five hundred twenty thousand, five hundred sixty-six".