22025455 has 8 divisors (see below), whose sum is σ = 27985392. Its totient is φ = 16583808.

The previous prime is 22025441. The next prime is 22025459. The reversal of 22025455 is 55452022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22025455 - 2⁷ = 22025327 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 (22025459) 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, 129477 + ... + 129646.

It is an arithmetic number, because the mean of its divisors is an integer number (3498174).

Almost surely, 2^22025455 is an apocalyptic number.

22025455 is a deficient number, since it is larger than the sum of its proper divisors (5959937).

22025455 is a wasteful number, since it uses less digits than its factorization.

22025455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259145.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 22025455 is about 4693.1284874804. The cubic root of 22025455 is about 280.3119609742.

Adding to 22025455 its reverse (55452022), we get a palindrome (77477477).

The spelling of 22025455 in words is "twenty-two million, twenty-five thousand, four hundred fifty-five".