22055148 has 18 divisors (see below), whose sum is σ = 55750604. Its totient is φ = 7351704.

The previous prime is 22055113. The next prime is 22055149. The reversal of 22055148 is 84155022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22055149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306286 + ... + 306357.

Almost surely, 2^22055148 is an apocalyptic number.

It is an amenable number.

22055148 is an abundant number, since it is smaller than the sum of its proper divisors (33695456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22055148 is a wasteful number, since it uses less digits than its factorization.

22055148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612653 (or 612648 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 22055148 is about 4696.2908768516. The cubic root of 22055148 is about 280.4378693165.

The spelling of 22055148 in words is "twenty-two million, fifty-five thousand, one hundred forty-eight".