22042550 has 24 divisors (see below), whose sum is σ = 42324672. Its totient is φ = 8532000.

The previous prime is 22042547. The next prime is 22042567. The reversal of 22042550 is 5524022.

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 11 ways as a sum of consecutive naturals, for example, 5561 + ... + 8660.

It is an arithmetic number, because the mean of its divisors is an integer number (1763528).

Almost surely, 2^22042550 is an apocalyptic number.

22042550 is a deficient number, since it is larger than the sum of its proper divisors (20282122).

22042550 is a wasteful number, since it uses less digits than its factorization.

22042550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14264 (or 14259 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22042550 is about 4694.9494139980. The cubic root of 22042550 is about 280.3844633547.

Adding to 22042550 its reverse (5524022), we get a palindrome (27566572).

The spelling of 22042550 in words is "twenty-two million, forty-two thousand, five hundred fifty".