22550002 has 4 divisors (see below), whose sum is σ = 33825006. Its totient is φ = 11275000.

The previous prime is 22549987. The next prime is 22550009. The reversal of 22550002 is 20005522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20005522 = 2 ⋅10002761.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 1929321 = 4541^2 + 1389^2 .

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 as a sum of consecutive naturals, namely, 5637499 + ... + 5637502.

Almost surely, 2^22550002 is an apocalyptic number.

22550002 is a deficient number, since it is larger than the sum of its proper divisors (11275004).

22550002 is a wasteful number, since it uses less digits than its factorization.

22550002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11275003.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 22550002 is about 4748.6842388182. The cubic root of 22550002 is about 282.5197814221.

Adding to 22550002 its reverse (20005522), we get a palindrome (42555524).

The spelling of 22550002 in words is "twenty-two million, five hundred fifty thousand, two".