445225211 has 4 divisors (see below), whose sum is σ = 445464792. Its totient is φ = 444985632.

The previous prime is 445225177. The next prime is 445225217. The reversal of 445225211 is 112522544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445225211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445225217) 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, 116981 + ... + 120726.

It is an arithmetic number, because the mean of its divisors is an integer number (111366198).

Almost surely, 2^445225211 is an apocalyptic number.

445225211 is a deficient number, since it is larger than the sum of its proper divisors (239581).

445225211 is a wasteful number, since it uses less digits than its factorization.

445225211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239580.

The product of its digits is 3200, while the sum is 26.

The square root of 445225211 is about 21100.3604471582. The cubic root of 445225211 is about 763.5894442420.

Adding to 445225211 its reverse (112522544), we get a palindrome (557747755).

The spelling of 445225211 in words is "four hundred forty-five million, two hundred twenty-five thousand, two hundred eleven".