45020211 has 4 divisors (see below), whose sum is σ = 60026952. Its totient is φ = 30013472.

The previous prime is 45020207. The next prime is 45020243. The reversal of 45020211 is 11202054.

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

It is a cyclic number.

It is not a de Polignac number, because 45020211 - 2² = 45020207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45020411) 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, 7503366 + ... + 7503371.

It is an arithmetic number, because the mean of its divisors is an integer number (15006738).

Almost surely, 2^45020211 is an apocalyptic number.

45020211 is a deficient number, since it is larger than the sum of its proper divisors (15006741).

45020211 is a wasteful number, since it uses less digits than its factorization.

45020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15006740.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 45020211 is about 6709.7102023858. The cubic root of 45020211 is about 355.7425731237.

Adding to 45020211 its reverse (11202054), we get a palindrome (56222265).

The spelling of 45020211 in words is "forty-five million, twenty thousand, two hundred eleven".