52587665 has 8 divisors (see below), whose sum is σ = 67959528. Its totient is φ = 38833920.

The previous prime is 52587659. The next prime is 52587709. The reversal of 52587665 is 56678525.

It can be written as a sum of positive squares in 4 ways, for example, as 300304 + 52287361 = 548^2 + 7231^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-52587665 is a prime.

It is an unprimeable number.

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, 404456 + ... + 404585.

It is an arithmetic number, because the mean of its divisors is an integer number (8494941).

Almost surely, 2^52587665 is an apocalyptic number.

It is an amenable number.

52587665 is a deficient number, since it is larger than the sum of its proper divisors (15371863).

52587665 is a wasteful number, since it uses less digits than its factorization.

52587665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809059.

The product of its digits is 504000, while the sum is 44.

The square root of 52587665 is about 7251.7353095656. The cubic root of 52587665 is about 374.6519199704.

The spelling of 52587665 in words is "fifty-two million, five hundred eighty-seven thousand, six hundred sixty-five".