22755945 has 32 divisors (see below), whose sum is σ = 38817792. Its totient is φ = 11343872.

The previous prime is 22755917. The next prime is 22755949. The reversal of 22755945 is 54955722.

It is a cyclic number.

It is not a de Polignac number, because 22755945 - 2⁶ = 22755881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22755949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59224 + ... + 59606.

It is an arithmetic number, because the mean of its divisors is an integer number (1213056).

Almost surely, 2^22755945 is an apocalyptic number.

It is an amenable number.

22755945 is a deficient number, since it is larger than the sum of its proper divisors (16061847).

22755945 is a wasteful number, since it uses less digits than its factorization.

22755945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its digits is 126000, while the sum is 39.

The square root of 22755945 is about 4770.3191717117. The cubic root of 22755945 is about 283.3772350273.

The spelling of 22755945 in words is "twenty-two million, seven hundred fifty-five thousand, nine hundred forty-five".