516113639 has 4 divisors (see below), whose sum is σ = 516162024. Its totient is φ = 516065256.

The previous prime is 516113593. The next prime is 516113641. The reversal of 516113639 is 936311615.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 516113639 - 2¹² = 516109543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516113599 and 516113608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516113239) 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, 377 + ... + 32130.

It is an arithmetic number, because the mean of its divisors is an integer number (129040506).

Almost surely, 2^516113639 is an apocalyptic number.

516113639 is a deficient number, since it is larger than the sum of its proper divisors (48385).

516113639 is a wasteful number, since it uses less digits than its factorization.

516113639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48384.

The product of its digits is 14580, while the sum is 35.

The square root of 516113639 is about 22718.1345845120. The cubic root of 516113639 is about 802.1368077965.

The spelling of 516113639 in words is "five hundred sixteen million, one hundred thirteen thousand, six hundred thirty-nine".