22553553 has 12 divisors (see below), whose sum is σ = 33054224. Its totient is φ = 13668600.

The previous prime is 22553539. The next prime is 22553563. The reversal of 22553553 is 35535522.

It is not a de Polignac number, because 22553553 - 2⁴ = 22553537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22553553.

It is not an unprimeable number, because it can be changed into a prime (22553563) 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 11 ways as a sum of consecutive naturals, for example, 30703 + ... + 31428.

Almost surely, 2^22553553 is an apocalyptic number.

It is an amenable number.

22553553 is a deficient number, since it is larger than the sum of its proper divisors (10500671).

22553553 is a wasteful number, since it uses less digits than its factorization.

22553553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62156 (or 62145 counting only the distinct ones).

The product of its digits is 22500, while the sum is 30.

The square root of 22553553 is about 4749.0581171428. The cubic root of 22553553 is about 282.5346103209.

The spelling of 22553553 in words is "twenty-two million, five hundred fifty-three thousand, five hundred fifty-three".