22123554 has 16 divisors (see below), whose sum is σ = 44307648. Its totient is φ = 7364432.

The previous prime is 22123547. The next prime is 22123603. The reversal of 22123554 is 45532122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (2769228).

Almost surely, 2^22123554 is an apocalyptic number.

22123554 is an abundant number, since it is smaller than the sum of its proper divisors (22184094).

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

22123554 is a wasteful number, since it uses less digits than its factorization.

22123554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049.

The product of its digits is 2400, while the sum is 24.

The square root of 22123554 is about 4703.5682199794. The cubic root of 22123554 is about 280.7275043977.

Adding to 22123554 its reverse (45532122), we get a palindrome (67655676).

The spelling of 22123554 in words is "twenty-two million, one hundred twenty-three thousand, five hundred fifty-four".