516639055 has 8 divisors (see below), whose sum is σ = 622629072. Its totient is φ = 411536448.

The previous prime is 516639043. The next prime is 516639059. The reversal of 516639055 is 550936615.

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 516639055 - 2⁹ = 516638543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516638999 and 516639017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516639059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220569 + ... + 222898.

It is an arithmetic number, because the mean of its divisors is an integer number (77828634).

Almost surely, 2^516639055 is an apocalyptic number.

516639055 is a deficient number, since it is larger than the sum of its proper divisors (105990017).

516639055 is a wasteful number, since it uses less digits than its factorization.

516639055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443705.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 516639055 is about 22729.6954445061. The cubic root of 516639055 is about 802.4089136176.

The spelling of 516639055 in words is "five hundred sixteen million, six hundred thirty-nine thousand, fifty-five".