525976820 has 12 divisors (see below), whose sum is σ = 1104551364. Its totient is φ = 210390720.

The previous prime is 525976819. The next prime is 525976837. The reversal of 525976820 is 28679525.

It can be written as a sum of positive squares in 2 ways, for example, as 191379556 + 334597264 = 13834^2 + 18292^2 .

It is a congruent number.

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, 13149401 + ... + 13149440.

It is an arithmetic number, because the mean of its divisors is an integer number (92045947).

Almost surely, 2^525976820 is an apocalyptic number.

It is an amenable number.

525976820 is an abundant number, since it is smaller than the sum of its proper divisors (578574544).

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

525976820 is a wasteful number, since it uses less digits than its factorization.

525976820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26298850 (or 26298848 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 525976820 is about 22934.1845287771. The cubic root of 525976820 is about 807.2143398125.

The spelling of 525976820 in words is "five hundred twenty-five million, nine hundred seventy-six thousand, eight hundred twenty".