22155653 has 12 divisors (see below), whose sum is σ = 25187148. Its totient is φ = 19370880.

The previous prime is 22155649. The next prime is 22155671. The reversal of 22155653 is 35655122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7279204 + 14876449 = 2698^2 + 3857^2 .

It is not a de Polignac number, because 22155653 - 2² = 22155649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2333 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (2098929).

Almost surely, 2^22155653 is an apocalyptic number.

It is an amenable number.

22155653 is a deficient number, since it is larger than the sum of its proper divisors (3031495).

22155653 is a wasteful number, since it uses less digits than its factorization.

22155653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772 (or 4753 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 22155653 is about 4706.9791798987. The cubic root of 22155653 is about 280.8632076942.

The spelling of 22155653 in words is "twenty-two million, one hundred fifty-five thousand, six hundred fifty-three".