22245554 has 16 divisors (see below), whose sum is σ = 36868608. Its totient is φ = 10012992.

The previous prime is 22245533. The next prime is 22245557. The reversal of 22245554 is 45554222.

It is not an unprimeable number, because it can be changed into a prime (22245557) 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, 13442 + ... + 15005.

It is an arithmetic number, because the mean of its divisors is an integer number (2304288).

Almost surely, 2^22245554 is an apocalyptic number.

22245554 is a deficient number, since it is larger than the sum of its proper divisors (14623054).

22245554 is a wasteful number, since it uses less digits than its factorization.

22245554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28489.

The product of its digits is 16000, while the sum is 29.

The square root of 22245554 is about 4716.5192674259. The cubic root of 22245554 is about 281.2425812693.

Adding to 22245554 its reverse (45554222), we get a palindrome (67799776).

The spelling of 22245554 in words is "twenty-two million, two hundred forty-five thousand, five hundred fifty-four".