22955591 has 4 divisors (see below), whose sum is σ = 24163800. Its totient is φ = 21747384.

The previous prime is 22955573. The next prime is 22955609. The reversal of 22955591 is 19555922.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22955573) and next prime (22955609).

It is a cyclic number.

It is not a de Polignac number, because 22955591 - 2¹⁴ = 22939207 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 (22955521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604076 + ... + 604113.

It is an arithmetic number, because the mean of its divisors is an integer number (6040950).

Almost surely, 2^22955591 is an apocalyptic number.

22955591 is a deficient number, since it is larger than the sum of its proper divisors (1208209).

22955591 is a wasteful number, since it uses less digits than its factorization.

22955591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208208.

The product of its digits is 40500, while the sum is 38.

The square root of 22955591 is about 4791.1993279345. The cubic root of 22955591 is about 284.2035463048.

The spelling of 22955591 in words is "twenty-two million, nine hundred fifty-five thousand, five hundred ninety-one".