22506803 has 4 divisors (see below), whose sum is σ = 24552888. Its totient is φ = 20460720.

The previous prime is 22506797. The next prime is 22506833. The reversal of 22506803 is 30860522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22506803 - 2¹⁶ = 22441267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22506833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023026 + ... + 1023047.

It is an arithmetic number, because the mean of its divisors is an integer number (6138222).

Almost surely, 2^22506803 is an apocalyptic number.

22506803 is a deficient number, since it is larger than the sum of its proper divisors (2046085).

22506803 is a wasteful number, since it uses less digits than its factorization.

22506803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046084.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22506803 is about 4744.1335352201. The cubic root of 22506803 is about 282.3392585443.

The spelling of 22506803 in words is "twenty-two million, five hundred six thousand, eight hundred three".