516363709 has 4 divisors (see below), whose sum is σ = 517120416. Its totient is φ = 515607004.

The previous prime is 516363691. The next prime is 516363713. The reversal of 516363709 is 907363615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 907363615 = 5 ⋅181472723.

It is a cyclic number.

It is not a de Polignac number, because 516363709 - 2¹⁷ = 516232637 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516363739) 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, 377329 + ... + 378694.

It is an arithmetic number, because the mean of its divisors is an integer number (129280104).

Almost surely, 2^516363709 is an apocalyptic number.

It is an amenable number.

516363709 is a deficient number, since it is larger than the sum of its proper divisors (756707).

516363709 is an equidigital number, since it uses as much as digits as its factorization.

516363709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756706.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 516363709 is about 22723.6376709364. The cubic root of 516363709 is about 802.2663386776.

The spelling of 516363709 in words is "five hundred sixteen million, three hundred sixty-three thousand, seven hundred nine".