22054577 has 2 divisors, whose sum is σ = 22054578. Its totient is φ = 22054576.

The previous prime is 22054567. The next prime is 22054589. The reversal of 22054577 is 77545022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12666481 + 9388096 = 3559^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 22054577 - 2²² = 17860273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22054537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11027288 + 11027289.

It is an arithmetic number, because the mean of its divisors is an integer number (11027289).

Almost surely, 2^22054577 is an apocalyptic number.

It is an amenable number.

22054577 is a deficient number, since it is larger than the sum of its proper divisors (1).

22054577 is an equidigital number, since it uses as much as digits as its factorization.

22054577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 22054577 is about 4696.2300838013. The cubic root of 22054577 is about 280.4354491498.

Adding to 22054577 its reverse (77545022), we get a palindrome (99599599).

The spelling of 22054577 in words is "twenty-two million, fifty-four thousand, five hundred seventy-seven".