516211725 has 12 divisors (see below), whose sum is σ = 853470176. Its totient is φ = 275312880.

The previous prime is 516211699. The next prime is 516211739. The reversal of 516211725 is 527112615.

It is not a de Polignac number, because 516211725 - 2²⁵ = 482657293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516211692 and 516211701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3441337 + ... + 3441486.

Almost surely, 2^516211725 is an apocalyptic number.

It is an amenable number.

516211725 is a deficient number, since it is larger than the sum of its proper divisors (337258451).

516211725 is a wasteful number, since it uses less digits than its factorization.

516211725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6882836 (or 6882831 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The square root of 516211725 is about 22720.2932419456. The cubic root of 516211725 is about 802.1876192208.

The spelling of 516211725 in words is "five hundred sixteen million, two hundred eleven thousand, seven hundred twenty-five".