516213550613 has 4 divisors (see below), whose sum is σ = 516224411148. Its totient is φ = 516202690080.

The previous prime is 516213550607. The next prime is 516213550667. The reversal of 516213550613 is 316055312615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 253027108324 + 263186442289 = 503018^2 + 513017^2 .

It is a cyclic number.

It is not a de Polignac number, because 516213550613 - 2²² = 516209356309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516213550673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5358656 + ... + 5454137.

It is an arithmetic number, because the mean of its divisors is an integer number (129056102787).

Almost surely, 2^516213550613 is an apocalyptic number.

It is an amenable number.

516213550613 is a deficient number, since it is larger than the sum of its proper divisors (10860535).

516213550613 is a wasteful number, since it uses less digits than its factorization.

516213550613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10860534.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 516213550613 in words is "five hundred sixteen billion, two hundred thirteen million, five hundred fifty thousand, six hundred thirteen".