516331331 has 8 divisors (see below), whose sum is σ = 529334784. Its totient is φ = 503412040.

The previous prime is 516331307. The next prime is 516331357. The reversal of 516331331 is 133133615.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 516331331 - 2¹⁴ = 516314947 is a prime.

It is a super-2 number, since 2×516331331² = 533196086744463122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 516331331.

It is not an unprimeable number, because it can be changed into a prime (516331031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8525 + ... + 33246.

It is an arithmetic number, because the mean of its divisors is an integer number (66166848).

Almost surely, 2^516331331 is an apocalyptic number.

516331331 is a deficient number, since it is larger than the sum of its proper divisors (13003453).

516331331 is a wasteful number, since it uses less digits than its factorization.

516331331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42081.

The product of its digits is 2430, while the sum is 26.

The square root of 516331331 is about 22722.9252298202. The cubic root of 516331331 is about 802.2495699272.

Adding to 516331331 its reverse (133133615), we get a palindrome (649464946).

The spelling of 516331331 in words is "five hundred sixteen million, three hundred thirty-one thousand, three hundred thirty-one".