22540550 has 12 divisors (see below), whose sum is σ = 41925516. Its totient is φ = 9016200.

The previous prime is 22540549. The next prime is 22540561. The reversal of 22540550 is 5504522.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 225356 + ... + 225455.

It is an arithmetic number, because the mean of its divisors is an integer number (3493793).

Almost surely, 2^22540550 is an apocalyptic number.

22540550 is a deficient number, since it is larger than the sum of its proper divisors (19384966).

22540550 is a wasteful number, since it uses less digits than its factorization.

22540550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450823 (or 450818 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 22540550 is about 4747.6889114600. The cubic root of 22540550 is about 282.4803024875.

The spelling of 22540550 in words is "twenty-two million, five hundred forty thousand, five hundred fifty".