22054405 has 16 divisors (see below), whose sum is σ = 27483120. Its totient is φ = 16975872.

The previous prime is 22054393. The next prime is 22054427. The reversal of 22054405 is 50445022.

It can be written as a sum of positive squares in 8 ways, for example, as 4464769 + 17589636 = 2113^2 + 4194^2 .

It is a cyclic number.

It is not a de Polignac number, because 22054405 - 2²³ = 13665797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17331 + ... + 18559.

It is an arithmetic number, because the mean of its divisors is an integer number (1717695).

Almost surely, 2^22054405 is an apocalyptic number.

It is an amenable number.

22054405 is a deficient number, since it is larger than the sum of its proper divisors (5428715).

22054405 is a wasteful number, since it uses less digits than its factorization.

22054405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 22054405 is about 4696.2117712045. The cubic root of 22054405 is about 280.4347201246.

Adding to 22054405 its reverse (50445022), we get a palindrome (72499427).

The spelling of 22054405 in words is "twenty-two million, fifty-four thousand, four hundred five".