22582081 has 4 divisors (see below), whose sum is σ = 23008212. Its totient is φ = 22155952.

The previous prime is 22582061. The next prime is 22582111. The reversal of 22582081 is 18028522.

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 5640625 + 16941456 = 2375^2 + 4116^2 .

It is a cyclic number.

It is not a de Polignac number, because 22582081 - 2⁹ = 22581569 is a prime.

It is a super-2 number, since 2×22582081² = 1019900764581122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22582061) 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, 212986 + ... + 213091.

It is an arithmetic number, because the mean of its divisors is an integer number (5752053).

Almost surely, 2^22582081 is an apocalyptic number.

It is an amenable number.

22582081 is a deficient number, since it is larger than the sum of its proper divisors (426131).

22582081 is an equidigital number, since it uses as much as digits as its factorization.

22582081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426130.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 22582081 is about 4752.0607108916. The cubic root of 22582081 is about 282.6536861833.

The spelling of 22582081 in words is "twenty-two million, five hundred eighty-two thousand, eighty-one".