19220056 has 16 divisors (see below), whose sum is σ = 36122400. Its totient is φ = 9587424.

The previous prime is 19220051. The next prime is 19220059. The reversal of 19220056 is 65002291.

It is a self number, because there is not a number n which added to its sum of digits gives 19220056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19220051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (2257650).

Almost surely, 2^19220056 is an apocalyptic number.

It is an amenable number.

19220056 is a deficient number, since it is larger than the sum of its proper divisors (16902344).

19220056 is a wasteful number, since it uses less digits than its factorization.

19220056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658 (or 5654 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 19220056 is about 4384.0684301229. The cubic root of 19220056 is about 267.8663847207.

The spelling of 19220056 in words is "nineteen million, two hundred twenty thousand, fifty-six".