22755891 has 8 divisors (see below), whose sum is σ = 31320064. Its totient is φ = 14681160.

The previous prime is 22755883. The next prime is 22755899. The reversal of 22755891 is 19855722.

It is an interprime number because it is at equal distance from previous prime (22755883) and next prime (22755899).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22755891 - 2³ = 22755883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22755899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122251 + ... + 122436.

It is an arithmetic number, because the mean of its divisors is an integer number (3915008).

Almost surely, 2^22755891 is an apocalyptic number.

22755891 is a deficient number, since it is larger than the sum of its proper divisors (8564173).

22755891 is a wasteful number, since it uses less digits than its factorization.

22755891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244721.

The product of its digits is 50400, while the sum is 39.

The square root of 22755891 is about 4770.3135117097. The cubic root of 22755891 is about 283.3770108751.

The spelling of 22755891 in words is "twenty-two million, seven hundred fifty-five thousand, eight hundred ninety-one".