22505055 has 8 divisors (see below), whose sum is σ = 36008112. Its totient is φ = 12002688.

The previous prime is 22505047. The next prime is 22505071. The reversal of 22505055 is 55050522.

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

It is not a de Polignac number, because 22505055 - 2³ = 22505047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750154 + ... + 750183.

It is an arithmetic number, because the mean of its divisors is an integer number (4501014).

Almost surely, 2^22505055 is an apocalyptic number.

22505055 is a deficient number, since it is larger than the sum of its proper divisors (13503057).

22505055 is a wasteful number, since it uses less digits than its factorization.

22505055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500345.

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 22505055 is about 4743.9493041136. The cubic root of 22505055 is about 282.3319490240.

Adding to 22505055 its reverse (55050522), we get a palindrome (77555577).

The spelling of 22505055 in words is "twenty-two million, five hundred five thousand, fifty-five".