22855311 has 8 divisors (see below), whose sum is σ = 33859760. Its totient is φ = 15236856.

The previous prime is 22855303. The next prime is 22855321. The reversal of 22855311 is 11355822.

It is a happy number.

It is not a de Polignac number, because 22855311 - 2³ = 22855303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 846493 = 22855311 / (2 + 2 + 8 + 5 + 5 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22855321) 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, 423220 + ... + 423273.

It is an arithmetic number, because the mean of its divisors is an integer number (4232470).

Almost surely, 2^22855311 is an apocalyptic number.

22855311 is a deficient number, since it is larger than the sum of its proper divisors (11004449).

22855311 is an equidigital number, since it uses as much as digits as its factorization.

22855311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846502 (or 846496 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 22855311 is about 4780.7228532932. The cubic root of 22855311 is about 283.7891006814.

The spelling of 22855311 in words is "twenty-two million, eight hundred fifty-five thousand, three hundred eleven".