516515379 has 8 divisors (see below), whose sum is σ = 692293632. Its totient is φ = 342540360.

The previous prime is 516515371. The next prime is 516515387. The reversal of 516515379 is 973515615.

It is an interprime number because it is at equal distance from previous prime (516515371) and next prime (516515387).

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

It is not a de Polignac number, because 516515379 - 2³ = 516515371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516515379.

It is not an unprimeable number, because it can be changed into a prime (516515371) 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, 450139 + ... + 451284.

It is an arithmetic number, because the mean of its divisors is an integer number (86536704).

Almost surely, 2^516515379 is an apocalyptic number.

516515379 is a deficient number, since it is larger than the sum of its proper divisors (175778253).

516515379 is a wasteful number, since it uses less digits than its factorization.

516515379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901617.

The product of its digits is 141750, while the sum is 42.

The square root of 516515379 is about 22726.9746996823. The cubic root of 516515379 is about 802.3448801022.

The spelling of 516515379 in words is "five hundred sixteen million, five hundred fifteen thousand, three hundred seventy-nine".