53086809 has 8 divisors (see below), whose sum is σ = 71578080. Its totient is φ = 34993376.

The previous prime is 53086807. The next prime is 53086853. The reversal of 53086809 is 90868035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53086809 - 2¹ = 53086807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53086807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99147 + ... + 99680.

It is an arithmetic number, because the mean of its divisors is an integer number (8947260).

Almost surely, 2^53086809 is an apocalyptic number.

It is an amenable number.

53086809 is a deficient number, since it is larger than the sum of its proper divisors (18491271).

53086809 is a wasteful number, since it uses less digits than its factorization.

53086809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198919.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 53086809 is about 7286.0695165501. The cubic root of 53086809 is about 375.8335449459.

The spelling of 53086809 in words is "fifty-three million, eighty-six thousand, eight hundred nine".