22280653 has 4 divisors (see below), whose sum is σ = 22304128. Its totient is φ = 22257180.

The previous prime is 22280641. The next prime is 22280663. The reversal of 22280653 is 35608222.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22280653 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 (22280663) 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, 10251 + ... + 12232.

It is an arithmetic number, because the mean of its divisors is an integer number (5576032).

Almost surely, 2^22280653 is an apocalyptic number.

It is an amenable number.

22280653 is a deficient number, since it is larger than the sum of its proper divisors (23475).

22280653 is an equidigital number, since it uses as much as digits as its factorization.

22280653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23474.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 22280653 is about 4720.2386592205. The cubic root of 22280653 is about 281.3904182446.

Adding to 22280653 its reverse (35608222), we get a palindrome (57888875).

The spelling of 22280653 in words is "twenty-two million, two hundred eighty thousand, six hundred fifty-three".