525816680 has 16 divisors (see below), whose sum is σ = 1183087620. Its totient is φ = 210326656.

The previous prime is 525816667. The next prime is 525816691. The reversal of 525816680 is 86618525.

It can be written as a sum of positive squares in 2 ways, for example, as 519931204 + 5885476 = 22802^2 + 2426^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6572669 + ... + 6572748.

Almost surely, 2^525816680 is an apocalyptic number.

It is an amenable number.

525816680 is an abundant number, since it is smaller than the sum of its proper divisors (657270940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525816680 is a wasteful number, since it uses less digits than its factorization.

525816680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13145428 (or 13145424 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 525816680 is about 22930.6929681595. The cubic root of 525816680 is about 807.1324094430.

The spelling of 525816680 in words is "five hundred twenty-five million, eight hundred sixteen thousand, six hundred eighty".