516445525 has 6 divisors (see below), whose sum is σ = 640392482. Its totient is φ = 413156400.

The previous prime is 516445483. The next prime is 516445529. The reversal of 516445525 is 525544615.

It can be written as a sum of positive squares in 3 ways, for example, as 39765636 + 476679889 = 6306^2 + 21833^2 .

It is not a de Polignac number, because 516445525 - 2¹³ = 516437333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516445529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10328886 + ... + 10328935.

Almost surely, 2^516445525 is an apocalyptic number.

It is an amenable number.

516445525 is a deficient number, since it is larger than the sum of its proper divisors (123946957).

516445525 is a wasteful number, since it uses less digits than its factorization.

516445525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20657831 (or 20657826 counting only the distinct ones).

The product of its digits is 120000, while the sum is 37.

The square root of 516445525 is about 22725.4378395665. The cubic root of 516445525 is about 802.3087085261.

The spelling of 516445525 in words is "five hundred sixteen million, four hundred forty-five thousand, five hundred twenty-five".