22530433 has 4 divisors (see below), whose sum is σ = 22801968. Its totient is φ = 22258900.

The previous prime is 22530379. The next prime is 22530449. The reversal of 22530433 is 33403522.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33403522 = 2 ⋅16701761.

It is a cyclic number.

It is not a de Polignac number, because 22530433 - 2⁹ = 22529921 is a prime.

It is a super-2 number, since 2×22530433² = 1015240822334978, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (22530463) 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, 135643 + ... + 135808.

It is an arithmetic number, because the mean of its divisors is an integer number (5700492).

Almost surely, 2^22530433 is an apocalyptic number.

It is an amenable number.

22530433 is a deficient number, since it is larger than the sum of its proper divisors (271535).

22530433 is an equidigital number, since it uses as much as digits as its factorization.

22530433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271534.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 22530433 is about 4746.6233261130. The cubic root of 22530433 is about 282.4380337630.

Adding to 22530433 its reverse (33403522), we get a palindrome (55933955).

The spelling of 22530433 in words is "twenty-two million, five hundred thirty thousand, four hundred thirty-three".