22543475 has 6 divisors (see below), whose sum is σ = 27953940. Its totient is φ = 18034760.

The previous prime is 22543463. The next prime is 22543501. The reversal of 22543475 is 57434522.

It is not a de Polignac number, because 22543475 - 2⁸ = 22543219 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 450845 + ... + 450894.

It is an arithmetic number, because the mean of its divisors is an integer number (4658990).

Almost surely, 2^22543475 is an apocalyptic number.

22543475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22543475 is a deficient number, since it is larger than the sum of its proper divisors (5410465).

22543475 is an equidigital number, since it uses as much as digits as its factorization.

22543475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901749 (or 901744 counting only the distinct ones).

The product of its digits is 33600, while the sum is 32.

The square root of 22543475 is about 4747.9969460816. The cubic root of 22543475 is about 282.4925207512.

Adding to 22543475 its reverse (57434522), we get a palindrome (79977997).

The spelling of 22543475 in words is "twenty-two million, five hundred forty-three thousand, four hundred seventy-five".