22055145 has 48 divisors (see below), whose sum is σ = 42211008. Its totient is φ = 9797760.

The previous prime is 22055113. The next prime is 22055149. The reversal of 22055145 is 54155022.

It is a happy number.

It is not a de Polignac number, because 22055145 - 2⁵ = 22055113 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 26790 + ... + 27600.

It is an arithmetic number, because the mean of its divisors is an integer number (879396).

Almost surely, 2^22055145 is an apocalyptic number.

It is an amenable number.

22055145 is a deficient number, since it is larger than the sum of its proper divisors (20155863).

22055145 is a wasteful number, since it uses less digits than its factorization.

22055145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 22055145 is about 4696.2905574506. The cubic root of 22055145 is about 280.4378566012.

The spelling of 22055145 in words is "twenty-two million, fifty-five thousand, one hundred forty-five".