22105553 has 8 divisors (see below), whose sum is σ = 23328000. Its totient is φ = 20904928.

The previous prime is 22105549. The next prime is 22105561. The reversal of 22105553 is 35550122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22105553 - 2² = 22105549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22105583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3353 + ... + 7446.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 2^22105553 is an apocalyptic number.

22105553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22105553 is a deficient number, since it is larger than the sum of its proper divisors (1222447).

22105553 is a wasteful number, since it uses less digits than its factorization.

22105553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 22105553 is about 4701.6542833347. The cubic root of 22105553 is about 280.6513450398.

Adding to 22105553 its reverse (35550122), we get a palindrome (57655675).

The spelling of 22105553 in words is "twenty-two million, one hundred five thousand, five hundred fifty-three".