45056447 has 4 divisors (see below), whose sum is σ = 45098400. Its totient is φ = 45014496.

The previous prime is 45056441. The next prime is 45056497. The reversal of 45056447 is 74465054.

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 45056447 - 2⁸ = 45056191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45056441) 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, 19322 + ... + 21527.

It is an arithmetic number, because the mean of its divisors is an integer number (11274600).

Almost surely, 2^45056447 is an apocalyptic number.

45056447 is a deficient number, since it is larger than the sum of its proper divisors (41953).

45056447 is a wasteful number, since it uses less digits than its factorization.

45056447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41952.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 45056447 is about 6712.4099249077. The cubic root of 45056447 is about 355.8379912380.

The spelling of 45056447 in words is "forty-five million, fifty-six thousand, four hundred forty-seven".