22523081 has 16 divisors (see below), whose sum is σ = 26738688. Its totient is φ = 18565200.

The previous prime is 22523071. The next prime is 22523087. The reversal of 22523081 is 18032522.

It is a cyclic number.

It is not a de Polignac number, because 22523081 - 2¹⁰ = 22522057 is a prime.

It is a super-2 number, since 2×22523081² = 1014578355465122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22523087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58616 + ... + 58998.

It is an arithmetic number, because the mean of its divisors is an integer number (1671168).

Almost surely, 2^22523081 is an apocalyptic number.

It is an amenable number.

22523081 is a deficient number, since it is larger than the sum of its proper divisors (4215607).

22523081 is a wasteful number, since it uses less digits than its factorization.

22523081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 22523081 is about 4745.8488176511. The cubic root of 22523081 is about 282.4073092414.

The spelling of 22523081 in words is "twenty-two million, five hundred twenty-three thousand, eighty-one".