22113550 has 12 divisors (see below), whose sum is σ = 41131296. Its totient is φ = 8845400.

The previous prime is 22113541. The next prime is 22113577. The reversal of 22113550 is 5531122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221086 + ... + 221185.

It is an arithmetic number, because the mean of its divisors is an integer number (3427608).

Almost surely, 2^22113550 is an apocalyptic number.

22113550 is a deficient number, since it is larger than the sum of its proper divisors (19017746).

22113550 is a wasteful number, since it uses less digits than its factorization.

22113550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442283 (or 442278 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 22113550 is about 4702.5046517787. The cubic root of 22113550 is about 280.6851841724.

Adding to 22113550 its reverse (5531122), we get a palindrome (27644672).

The spelling of 22113550 in words is "twenty-two million, one hundred thirteen thousand, five hundred fifty".