516331271 has 4 divisors (see below), whose sum is σ = 516959472. Its totient is φ = 515703072.

The previous prime is 516331261. The next prime is 516331273. The reversal of 516331271 is 172133615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516331271 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 (516331273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312866 + ... + 314511.

It is an arithmetic number, because the mean of its divisors is an integer number (129239868).

Almost surely, 2^516331271 is an apocalyptic number.

516331271 is a deficient number, since it is larger than the sum of its proper divisors (628201).

516331271 is an equidigital number, since it uses as much as digits as its factorization.

516331271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628200.

The product of its digits is 3780, while the sum is 29.

The square root of 516331271 is about 22722.9239095676. The cubic root of 516331271 is about 802.2495388522.

Adding to 516331271 its reverse (172133615), we get a palindrome (688464886).

The spelling of 516331271 in words is "five hundred sixteen million, three hundred thirty-one thousand, two hundred seventy-one".