22455533 has 4 divisors (see below), whose sum is σ = 22619580. Its totient is φ = 22291488.

The previous prime is 22455529. The next prime is 22455547. The reversal of 22455533 is 33555422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33555422 = 2 ⋅16777711.

It can be written as a sum of positive squares in 2 ways, for example, as 12802084 + 9653449 = 3578^2 + 3107^2 .

It is a cyclic number.

It is not a de Polignac number, because 22455533 - 2² = 22455529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22455496 and 22455505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22455523) 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, 81818 + ... + 82091.

It is an arithmetic number, because the mean of its divisors is an integer number (5654895).

Almost surely, 2^22455533 is an apocalyptic number.

It is an amenable number.

22455533 is a deficient number, since it is larger than the sum of its proper divisors (164047).

22455533 is a wasteful number, since it uses less digits than its factorization.

22455533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164046.

The product of its digits is 18000, while the sum is 29.

The square root of 22455533 is about 4738.7269387463. The cubic root of 22455533 is about 282.1247080168.

The spelling of 22455533 in words is "twenty-two million, four hundred fifty-five thousand, five hundred thirty-three".