52738409 has 4 divisors (see below), whose sum is σ = 54439680. Its totient is φ = 51037140.

The previous prime is 52738393. The next prime is 52738417. The reversal of 52738409 is 90483725.

52738409 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52738409 - 2⁴ = 52738393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52738429) 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, 850589 + ... + 850650.

It is an arithmetic number, because the mean of its divisors is an integer number (13609920).

Almost surely, 2^52738409 is an apocalyptic number.

It is an amenable number.

52738409 is a deficient number, since it is larger than the sum of its proper divisors (1701271).

52738409 is a wasteful number, since it uses less digits than its factorization.

52738409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701270.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 52738409 is about 7262.1215219796. The cubic root of 52738409 is about 375.0095618303.

The spelling of 52738409 in words is "fifty-two million, seven hundred thirty-eight thousand, four hundred nine".