22445455 has 8 divisors (see below), whose sum is σ = 26966304. Its totient is φ = 17935200.

The previous prime is 22445431. The next prime is 22445459. The reversal of 22445455 is 55454422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22445455 - 2¹⁹ = 21921167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22445459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190 + ... + 7420.

It is an arithmetic number, because the mean of its divisors is an integer number (3370788).

Almost surely, 2^22445455 is an apocalyptic number.

22445455 is a deficient number, since it is larger than the sum of its proper divisors (4520849).

22445455 is a wasteful number, since it uses less digits than its factorization.

22445455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5297.

The product of its digits is 32000, while the sum is 31.

The square root of 22445455 is about 4737.6634536446. The cubic root of 22445455 is about 282.0824960260.

Adding to 22445455 its reverse (55454422), we get a palindrome (77899877).

The spelling of 22445455 in words is "twenty-two million, four hundred forty-five thousand, four hundred fifty-five".