56827509 has 8 divisors (see below), whose sum is σ = 76315680. Its totient is φ = 37612176.

The previous prime is 56827489. The next prime is 56827513. The reversal of 56827509 is 90572865.

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

It is not a de Polignac number, because 56827509 - 2¹² = 56823413 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56827579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67722 + ... + 68555.

It is an arithmetic number, because the mean of its divisors is an integer number (9539460).

Almost surely, 2^56827509 is an apocalyptic number.

It is an amenable number.

56827509 is a deficient number, since it is larger than the sum of its proper divisors (19488171).

56827509 is a wasteful number, since it uses less digits than its factorization.

56827509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136419.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 56827509 is about 7538.4022843040. The cubic root of 56827509 is about 384.4615151413.

The spelling of 56827509 in words is "fifty-six million, eight hundred twenty-seven thousand, five hundred nine".