22550001 has 8 divisors (see below), whose sum is σ = 30179520. Its totient is φ = 14976912.

The previous prime is 22549987. The next prime is 22550009. The reversal of 22550001 is 10005522.

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

It is not a de Polignac number, because 22550001 - 2⁷ = 22549873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22550009) 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, 13165 + ... + 14778.

It is an arithmetic number, because the mean of its divisors is an integer number (3772440).

Almost surely, 2^22550001 is an apocalyptic number.

It is an amenable number.

22550001 is a deficient number, since it is larger than the sum of its proper divisors (7629519).

22550001 is a wasteful number, since it uses less digits than its factorization.

22550001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28215.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 22550001 is about 4748.6841335258. The cubic root of 22550001 is about 282.5197772459.

Adding to 22550001 its reverse (10005522), we get a palindrome (32555523).

The spelling of 22550001 in words is "twenty-two million, five hundred fifty thousand, one".