52317887 has 4 divisors (see below), whose sum is σ = 55071480. Its totient is φ = 49564296.

The previous prime is 52317833. The next prime is 52317911. The reversal of 52317887 is 78871325.

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 52317887 - 2⁸ = 52317631 is a prime.

It is a super-2 number, since 2×52317887² = 5474322600289538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52307887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376768 + ... + 1376805.

It is an arithmetic number, because the mean of its divisors is an integer number (13767870).

Almost surely, 2^52317887 is an apocalyptic number.

52317887 is a deficient number, since it is larger than the sum of its proper divisors (2753593).

52317887 is a wasteful number, since it uses less digits than its factorization.

52317887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753592.

The product of its digits is 94080, while the sum is 41.

The square root of 52317887 is about 7233.1104650766. The cubic root of 52317887 is about 374.0101587220.

The spelling of 52317887 in words is "fifty-two million, three hundred seventeen thousand, eight hundred eighty-seven".