47454445 has 4 divisors (see below), whose sum is σ = 56945340. Its totient is φ = 37963552.

The previous prime is 47454427. The next prime is 47454479. The reversal of 47454445 is 54445474.

47454445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54445474 = 2 ⋅27222737.

It can be written as a sum of positive squares in 2 ways, for example, as 37124649 + 10329796 = 6093^2 + 3214^2 .

It is a cyclic number.

It is not a de Polignac number, because 47454445 - 2¹⁵ = 47421677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4745440 + ... + 4745449.

It is an arithmetic number, because the mean of its divisors is an integer number (14236335).

Almost surely, 2^47454445 is an apocalyptic number.

It is an amenable number.

47454445 is a deficient number, since it is larger than the sum of its proper divisors (9490895).

47454445 is an equidigital number, since it uses as much as digits as its factorization.

47454445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9490894.

The product of its digits is 179200, while the sum is 37.

The square root of 47454445 is about 6888.7186762126. The cubic root of 47454445 is about 362.0420090031.

The spelling of 47454445 in words is "forty-seven million, four hundred fifty-four thousand, four hundred forty-five".