22150055 has 16 divisors (see below), whose sum is σ = 27686880. Its totient is φ = 16990848.

The previous prime is 22150001. The next prime is 22150061. The reversal of 22150055 is 55005122.

It is a cyclic number.

It is not a de Polignac number, because 22150055 - 2¹⁶ = 22084519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24644 + ... + 25526.

It is an arithmetic number, because the mean of its divisors is an integer number (1730430).

Almost surely, 2^22150055 is an apocalyptic number.

22150055 is a deficient number, since it is larger than the sum of its proper divisors (5536825).

22150055 is a wasteful number, since it uses less digits than its factorization.

22150055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 22150055 is about 4706.3844934302. The cubic root of 22150055 is about 280.8395507570.

Adding to 22150055 its reverse (55005122), we get a palindrome (77155177).

The spelling of 22150055 in words is "twenty-two million, one hundred fifty thousand, fifty-five".