22250554 has 4 divisors (see below), whose sum is σ = 33375834. Its totient is φ = 11125276.

The previous prime is 22250537. The next prime is 22250563. The reversal of 22250554 is 45505222.

It is a happy number.

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., 12794929 + 9455625 = 3577^2 + 3075^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5562637 + ... + 5562640.

Almost surely, 2^22250554 is an apocalyptic number.

22250554 is a deficient number, since it is larger than the sum of its proper divisors (11125280).

22250554 is a wasteful number, since it uses less digits than its factorization.

22250554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11125279.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 22250554 is about 4717.0492895453. The cubic root of 22250554 is about 281.2636507613.

Adding to 22250554 its reverse (45505222), we get a palindrome (67755776).

The spelling of 22250554 in words is "twenty-two million, two hundred fifty thousand, five hundred fifty-four".