22545653 has 4 divisors (see below), whose sum is σ = 24279948. Its totient is φ = 20811360.

The previous prime is 22545641. The next prime is 22545709. The reversal of 22545653 is 35654522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11242609 + 11303044 = 3353^2 + 3362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22545653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22545623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867128 + ... + 867153.

It is an arithmetic number, because the mean of its divisors is an integer number (6069987).

Almost surely, 2^22545653 is an apocalyptic number.

It is an amenable number.

22545653 is a deficient number, since it is larger than the sum of its proper divisors (1734295).

22545653 is a wasteful number, since it uses less digits than its factorization.

22545653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734294.

The product of its digits is 36000, while the sum is 32.

The square root of 22545653 is about 4748.2263004200. The cubic root of 22545653 is about 282.5016179718.

The spelling of 22545653 in words is "twenty-two million, five hundred forty-five thousand, six hundred fifty-three".