52731449 has 4 divisors (see below), whose sum is σ = 53726436. Its totient is φ = 51736464.

The previous prime is 52731439. The next prime is 52731461. The reversal of 52731449 is 94413725.

52731449 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 can be written as a sum of positive squares in 2 ways, for example, as 34515625 + 18215824 = 5875^2 + 4268^2 .

It is a cyclic number.

It is not a de Polignac number, because 52731449 - 2¹⁶ = 52665913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52731409) 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, 497414 + ... + 497519.

It is an arithmetic number, because the mean of its divisors is an integer number (13431609).

Almost surely, 2^52731449 is an apocalyptic number.

It is an amenable number.

52731449 is a deficient number, since it is larger than the sum of its proper divisors (994987).

52731449 is an equidigital number, since it uses as much as digits as its factorization.

52731449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994986.

The product of its digits is 30240, while the sum is 35.

The square root of 52731449 is about 7261.6423073572. The cubic root of 52731449 is about 374.9930641680.

The spelling of 52731449 in words is "fifty-two million, seven hundred thirty-one thousand, four hundred forty-nine".