22620553 has 4 divisors (see below), whose sum is σ = 22674960. Its totient is φ = 22566148.

The previous prime is 22620547. The next prime is 22620581. The reversal of 22620553 is 35502622.

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 22620553 - 2⁹ = 22620041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22620503) 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, 26575 + ... + 27412.

It is an arithmetic number, because the mean of its divisors is an integer number (5668740).

Almost surely, 2^22620553 is an apocalyptic number.

It is an amenable number.

22620553 is a deficient number, since it is larger than the sum of its proper divisors (54407).

22620553 is an equidigital number, since it uses as much as digits as its factorization.

22620553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54406.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 22620553 is about 4756.1069163760. The cubic root of 22620553 is about 282.8141095907.

The spelling of 22620553 in words is "twenty-two million, six hundred twenty thousand, five hundred fifty-three".