22045553 has 4 divisors (see below), whose sum is σ = 22075968. Its totient is φ = 22015140.

The previous prime is 22045537. The next prime is 22045561. The reversal of 22045553 is 35554022.

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 22045553 - 2⁴ = 22045537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22045853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14093 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (5518992).

Almost surely, 2^22045553 is an apocalyptic number.

It is an amenable number.

22045553 is a deficient number, since it is larger than the sum of its proper divisors (30415).

22045553 is an equidigital number, since it uses as much as digits as its factorization.

22045553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30414.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 22045553 is about 4695.2692148587. The cubic root of 22045553 is about 280.3971956431.

Adding to 22045553 its reverse (35554022), we get a palindrome (57599575).

The spelling of 22045553 in words is "twenty-two million, forty-five thousand, five hundred fifty-three".