52317731 has 4 divisors (see below), whose sum is σ = 53304912. Its totient is φ = 51330552.

The previous prime is 52317703. The next prime is 52317737. The reversal of 52317731 is 13771325.

52317731 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 52317731 - 2¹⁰ = 52316707 is a prime.

It is a super-2 number, since 2×52317731² = 5474289953976722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52317694 and 52317703.

It is not an unprimeable number, because it can be changed into a prime (52317737) 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, 493511 + ... + 493616.

It is an arithmetic number, because the mean of its divisors is an integer number (13326228).

Almost surely, 2^52317731 is an apocalyptic number.

52317731 is a deficient number, since it is larger than the sum of its proper divisors (987181).

52317731 is an equidigital number, since it uses as much as digits as its factorization.

52317731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987180.

The product of its digits is 4410, while the sum is 29.

The square root of 52317731 is about 7233.0996813261. The cubic root of 52317731 is about 374.0097869840.

The spelling of 52317731 in words is "fifty-two million, three hundred seventeen thousand, seven hundred thirty-one".