22543005 has 24 divisors (see below), whose sum is σ = 37376352. Its totient is φ = 11601856.

The previous prime is 22542991. The next prime is 22543019. The reversal of 22543005 is 50034522.

It is an interprime number because it is at equal distance from previous prime (22542991) and next prime (22543019).

It is not a de Polignac number, because 22543005 - 2⁵ = 22542973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11722 + ... + 13508.

It is an arithmetic number, because the mean of its divisors is an integer number (1557348).

Almost surely, 2^22543005 is an apocalyptic number.

It is an amenable number.

22543005 is a deficient number, since it is larger than the sum of its proper divisors (14833347).

22543005 is a wasteful number, since it uses less digits than its factorization.

22543005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22543005 is about 4747.9474512678. The cubic root of 22543005 is about 282.4905575459.

Adding to 22543005 its reverse (50034522), we get a palindrome (72577527).

The spelling of 22543005 in words is "twenty-two million, five hundred forty-three thousand, five".