45222785 has 4 divisors (see below), whose sum is σ = 54267348. Its totient is φ = 36178224.

The previous prime is 45222781. The next prime is 45222787. The reversal of 45222785 is 58722254.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15618304 + 29604481 = 3952^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 45222785 - 2² = 45222781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45222781) 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, 4522274 + ... + 4522283.

It is an arithmetic number, because the mean of its divisors is an integer number (13566837).

Almost surely, 2^45222785 is an apocalyptic number.

It is an amenable number.

45222785 is a deficient number, since it is larger than the sum of its proper divisors (9044563).

45222785 is an equidigital number, since it uses as much as digits as its factorization.

45222785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9044562.

The product of its digits is 44800, while the sum is 35.

The square root of 45222785 is about 6724.7888442686. The cubic root of 45222785 is about 356.2753440470.

The spelling of 45222785 in words is "forty-five million, two hundred twenty-two thousand, seven hundred eighty-five".