22104550 has 48 divisors (see below), whose sum is σ = 45747072. Its totient is φ = 7891200.

The previous prime is 22104529. The next prime is 22104553. The reversal of 22104550 is 5540122.

It is a super-2 number, since 2×22104550² = 977222261405000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22104553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19602 + ... + 20698.

It is an arithmetic number, because the mean of its divisors is an integer number (953064).

Almost surely, 2^22104550 is an apocalyptic number.

22104550 is an abundant number, since it is smaller than the sum of its proper divisors (23642522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22104550 is a wasteful number, since it uses less digits than its factorization.

22104550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22104550 is about 4701.5476175404. The cubic root of 22104550 is about 280.6471002910.

Adding to 22104550 its reverse (5540122), we get a palindrome (27644672).

The spelling of 22104550 in words is "twenty-two million, one hundred four thousand, five hundred fifty".