22155233 has 8 divisors (see below), whose sum is σ = 24478848. Its totient is φ = 19945024.

The previous prime is 22155227. The next prime is 22155239. The reversal of 22155233 is 33255122.

It is an interprime number because it is at equal distance from previous prime (22155227) and next prime (22155239).

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

It is a cyclic number.

It is not a de Polignac number, because 22155233 - 2⁶ = 22155169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22155199 and 22155208.

It is not an unprimeable number, because it can be changed into a prime (22155239) 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, 27941 + ... + 28722.

It is an arithmetic number, because the mean of its divisors is an integer number (3059856).

Almost surely, 2^22155233 is an apocalyptic number.

22155233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22155233 is a deficient number, since it is larger than the sum of its proper divisors (2323615).

22155233 is a wasteful number, since it uses less digits than its factorization.

22155233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56703.

The product of its digits is 1800, while the sum is 23.

The square root of 22155233 is about 4706.9345650859. The cubic root of 22155233 is about 280.8614329283.

The spelling of 22155233 in words is "twenty-two million, one hundred fifty-five thousand, two hundred thirty-three".