22853681 has 4 divisors (see below), whose sum is σ = 22884864. Its totient is φ = 22822500.

The previous prime is 22853669. The next prime is 22853689. The reversal of 22853681 is 18635822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18635822 = 2 ⋅9317911.

It is a cyclic number.

It is not a de Polignac number, because 22853681 - 2¹⁰ = 22852657 is a prime.

It is a super-2 number, since 2×22853681² = 1044581470499522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22853689) 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, 14465 + ... + 15966.

It is an arithmetic number, because the mean of its divisors is an integer number (5721216).

Almost surely, 2^22853681 is an apocalyptic number.

It is an amenable number.

22853681 is a deficient number, since it is larger than the sum of its proper divisors (31183).

22853681 is an equidigital number, since it uses as much as digits as its factorization.

22853681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31182.

The product of its digits is 23040, while the sum is 35.

The square root of 22853681 is about 4780.5523739417. The cubic root of 22853681 is about 283.7823540769.

The spelling of 22853681 in words is "twenty-two million, eight hundred fifty-three thousand, six hundred eighty-one".