22572533 has 4 divisors (see below), whose sum is σ = 22890528. Its totient is φ = 22254540.

The previous prime is 22572497. The next prime is 22572581. The reversal of 22572533 is 33527522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22572533 - 2¹² = 22568437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22572496 and 22572505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22572733) 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, 158891 + ... + 159032.

It is an arithmetic number, because the mean of its divisors is an integer number (5722632).

Almost surely, 2^22572533 is an apocalyptic number.

It is an amenable number.

22572533 is a deficient number, since it is larger than the sum of its proper divisors (317995).

22572533 is an equidigital number, since it uses as much as digits as its factorization.

22572533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317994.

The product of its digits is 12600, while the sum is 29.

The square root of 22572533 is about 4751.0559878831. The cubic root of 22572533 is about 282.6138440057.

The spelling of 22572533 in words is "twenty-two million, five hundred seventy-two thousand, five hundred thirty-three".