22054457 has 12 divisors (see below), whose sum is σ = 23787540. Its totient is φ = 20447328.

The previous prime is 22054453. The next prime is 22054481. The reversal of 22054457 is 75445022.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 12138256 + 9916201 = 3484^2 + 3149^2 .

It is not a de Polignac number, because 22054457 - 2² = 22054453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22054453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329138 + ... + 329204.

It is an arithmetic number, because the mean of its divisors is an integer number (1982295).

Almost surely, 2^22054457 is an apocalyptic number.

It is an amenable number.

22054457 is a deficient number, since it is larger than the sum of its proper divisors (1733083).

22054457 is an frugal number, since it uses more digits than its factorization.

22054457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 22054457 is about 4696.2173075785. The cubic root of 22054457 is about 280.4349405280.

Adding to 22054457 its reverse (75445022), we get a palindrome (97499479).

The spelling of 22054457 in words is "twenty-two million, fifty-four thousand, four hundred fifty-seven".