22010554 has 4 divisors (see below), whose sum is σ = 33015834. Its totient is φ = 11005276.

The previous prime is 22010551. The next prime is 22010567. The reversal of 22010554 is 45501022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16120225 + 5890329 = 4015^2 + 2427^2 .

It is not an unprimeable number, because it can be changed into a prime (22010551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5502637 + ... + 5502640.

Almost surely, 2^22010554 is an apocalyptic number.

22010554 is a deficient number, since it is larger than the sum of its proper divisors (11005280).

22010554 is a wasteful number, since it uses less digits than its factorization.

22010554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005279.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22010554 is about 4691.5406851055. The cubic root of 22010554 is about 280.2487330586.

Adding to 22010554 its reverse (45501022), we get a palindrome (67511576).

The spelling of 22010554 in words is "twenty-two million, ten thousand, five hundred fifty-four".