52831687 has 4 divisors (see below), whose sum is σ = 53344720. Its totient is φ = 52318656.

The previous prime is 52831679. The next prime is 52831693. The reversal of 52831687 is 78613825.

52831687 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.

It is a cyclic number.

It is not a de Polignac number, because 52831687 - 2³ = 52831679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52831607) 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, 256362 + ... + 256567.

It is an arithmetic number, because the mean of its divisors is an integer number (13336180).

Almost surely, 2^52831687 is an apocalyptic number.

52831687 is a deficient number, since it is larger than the sum of its proper divisors (513033).

52831687 is a wasteful number, since it uses less digits than its factorization.

52831687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513032.

The product of its digits is 80640, while the sum is 40.

The square root of 52831687 is about 7268.5409127279. The cubic root of 52831687 is about 375.2305237426.

The spelling of 52831687 in words is "fifty-two million, eight hundred thirty-one thousand, six hundred eighty-seven".