53366409 has 24 divisors (see below), whose sum is σ = 80371200. Its totient is φ = 34080480.

The previous prime is 53366359. The next prime is 53366413. The reversal of 53366409 is 90466335.

53366409 is a `hidden beast` number, since 5 + 3 + 3 + 6 + 640 + 9 = 666.

53366409 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 53366409 - 2¹⁷ = 53235337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53366609) 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 23 ways as a sum of consecutive naturals, for example, 35544 + ... + 37014.

It is an arithmetic number, because the mean of its divisors is an integer number (3348800).

Almost surely, 2^53366409 is an apocalyptic number.

It is an amenable number.

53366409 is a deficient number, since it is larger than the sum of its proper divisors (27004791).

53366409 is a wasteful number, since it uses less digits than its factorization.

53366409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 53366409 is about 7305.2316185046. The cubic root of 53366409 is about 376.4922089572.

The spelling of 53366409 in words is "fifty-three million, three hundred sixty-six thousand, four hundred nine".