45056325217 has 4 divisors (see below), whose sum is σ = 45071352000. Its totient is φ = 45041298436.

The previous prime is 45056325169. The next prime is 45056325221. The reversal of 45056325217 is 71252365054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45056325217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45056325217.

It is not an unprimeable number, because it can be changed into a prime (45056328217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7508893 + ... + 7514890.

It is an arithmetic number, because the mean of its divisors is an integer number (11267838000).

Almost surely, 2^45056325217 is an apocalyptic number.

It is an amenable number.

45056325217 is a deficient number, since it is larger than the sum of its proper divisors (15026783).

45056325217 is a wasteful number, since it uses less digits than its factorization.

45056325217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15026782.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 45056325217 in words is "forty-five billion, fifty-six million, three hundred twenty-five thousand, two hundred seventeen".