52784409 has 16 divisors (see below), whose sum is σ = 72656640. Its totient is φ = 34069200.

The previous prime is 52784401. The next prime is 52784411. The reversal of 52784409 is 90448725.

52784409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52784409 - 2³ = 52784401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52784401) 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 15 ways as a sum of consecutive naturals, for example, 9634 + ... + 14084.

It is an arithmetic number, because the mean of its divisors is an integer number (4541040).

Almost surely, 2^52784409 is an apocalyptic number.

52784409 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

52784409 is a deficient number, since it is larger than the sum of its proper divisors (19872231).

52784409 is a wasteful number, since it uses less digits than its factorization.

52784409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 52784409 is about 7265.2879502467. The cubic root of 52784409 is about 375.1185616222.

The spelling of 52784409 in words is "fifty-two million, seven hundred eighty-four thousand, four hundred nine".