52240447 has 4 divisors (see below), whose sum is σ = 59703376. Its totient is φ = 44777520.

The previous prime is 52240427. The next prime is 52240469. The reversal of 52240447 is 74404225.

It is a happy number.

52240447 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.

It is a cyclic number.

It is not a de Polignac number, because 52240447 - 2¹⁵ = 52207679 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 (52240427) by changing a digit.

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, 3731454 + ... + 3731467.

It is an arithmetic number, because the mean of its divisors is an integer number (14925844).

Almost surely, 2^52240447 is an apocalyptic number.

52240447 is a deficient number, since it is larger than the sum of its proper divisors (7462929).

52240447 is an equidigital number, since it uses as much as digits as its factorization.

52240447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462928.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 52240447 is about 7227.7553223667. The cubic root of 52240447 is about 373.8255332178.

The spelling of 52240447 in words is "fifty-two million, two hundred forty thousand, four hundred forty-seven".