516525505 has 4 divisors (see below), whose sum is σ = 619830612. Its totient is φ = 413220400.

The previous prime is 516525437. The next prime is 516525523. The reversal of 516525505 is 505525615.

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 204261264 + 312264241 = 14292^2 + 17671^2 .

It is not a de Polignac number, because 516525505 - 2⁹ = 516524993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51652546 + ... + 51652555.

It is an arithmetic number, because the mean of its divisors is an integer number (154957653).

Almost surely, 2^516525505 is an apocalyptic number.

It is an amenable number.

516525505 is a deficient number, since it is larger than the sum of its proper divisors (103305107).

516525505 is a wasteful number, since it uses less digits than its factorization.

516525505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103305106.

The product of its (nonzero) digits is 37500, while the sum is 34.

The square root of 516525505 is about 22727.1974735118. The cubic root of 516525505 is about 802.3501232447.

The spelling of 516525505 in words is "five hundred sixteen million, five hundred twenty-five thousand, five hundred five".