22056869 has 4 divisors (see below), whose sum is σ = 22386144. Its totient is φ = 21727596.

The previous prime is 22056823. The next prime is 22056883. The reversal of 22056869 is 96865022.

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: 96865022 = 2 ⋅48432511.

It is a cyclic number.

It is not a de Polignac number, because 22056869 - 2²⁰ = 21008293 is a prime.

It is a super-2 number, since 2×22056869² = 973010940166322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22056899) 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, 164537 + ... + 164670.

It is an arithmetic number, because the mean of its divisors is an integer number (5596536).

Almost surely, 2^22056869 is an apocalyptic number.

It is an amenable number.

22056869 is a deficient number, since it is larger than the sum of its proper divisors (329275).

22056869 is an equidigital number, since it uses as much as digits as its factorization.

22056869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329274.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 22056869 is about 4696.4741029841. The cubic root of 22056869 is about 280.4451634717.

The spelling of 22056869 in words is "twenty-two million, fifty-six thousand, eight hundred sixty-nine".