516312525 has 24 divisors (see below), whose sum is σ = 903852864. Its totient is φ = 259168000.

The previous prime is 516312521. The next prime is 516312583. The reversal of 516312525 is 525213615.

It is a happy number.

It is not a de Polignac number, because 516312525 - 2² = 516312521 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 516312492 and 516312501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516312521) 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 23 ways as a sum of consecutive naturals, for example, 201201 + ... + 203750.

It is an arithmetic number, because the mean of its divisors is an integer number (37660536).

Almost surely, 2^516312525 is an apocalyptic number.

It is an amenable number.

516312525 is a deficient number, since it is larger than the sum of its proper divisors (387540339).

516312525 is a wasteful number, since it uses less digits than its factorization.

516312525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404981 (or 404976 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 516312525 is about 22722.5114148943. The cubic root of 516312525 is about 802.2398298710.

The spelling of 516312525 in words is "five hundred sixteen million, three hundred twelve thousand, five hundred twenty-five".