22050905 has 8 divisors (see below), whose sum is σ = 27611712. Its totient is φ = 16873648.

The previous prime is 22050901. The next prime is 22050911. The reversal of 22050905 is 50905022.

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 22050905 - 2² = 22050901 is a prime.

It is a super-2 number, since 2×22050905² = 972484822638050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22050901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95759 + ... + 95988.

It is an arithmetic number, because the mean of its divisors is an integer number (3451464).

Almost surely, 2^22050905 is an apocalyptic number.

It is an amenable number.

22050905 is a deficient number, since it is larger than the sum of its proper divisors (5560807).

22050905 is a wasteful number, since it uses less digits than its factorization.

22050905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191775.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 22050905 is about 4695.8391156427. The cubic root of 22050905 is about 280.4198844875.

Adding to 22050905 its reverse (50905022), we get a palindrome (72955927).

The spelling of 22050905 in words is "twenty-two million, fifty thousand, nine hundred five".