22892561 has 4 divisors (see below), whose sum is σ = 22904292. Its totient is φ = 22880832.

The previous prime is 22892537. The next prime is 22892593. The reversal of 22892561 is 16529822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16529822 = 2 ⋅8264911.

It can be written as a sum of positive squares in 2 ways, for example, as 8300161 + 14592400 = 2881^2 + 3820^2 .

It is a cyclic number.

It is not a de Polignac number, because 22892561 - 2¹⁴ = 22876177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22822561) 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, 2156 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (5726073).

Almost surely, 2^22892561 is an apocalyptic number.

It is an amenable number.

22892561 is a deficient number, since it is larger than the sum of its proper divisors (11731).

22892561 is an equidigital number, since it uses as much as digits as its factorization.

22892561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11730.

The product of its digits is 17280, while the sum is 35.

The square root of 22892561 is about 4784.6171215678. The cubic root of 22892561 is about 283.9431918710.

The spelling of 22892561 in words is "twenty-two million, eight hundred ninety-two thousand, five hundred sixty-one".