76566520 has 16 divisors (see below), whose sum is σ = 172274760. Its totient is φ = 30626592.

The previous prime is 76566509. The next prime is 76566527. The reversal of 76566520 is 2566567.

It is a self number, because there is not a number n which added to its sum of digits gives 76566520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76566527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957042 + ... + 957121.

Almost surely, 2^76566520 is an apocalyptic number.

It is an amenable number.

76566520 is an abundant number, since it is smaller than the sum of its proper divisors (95708240).

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

76566520 is a wasteful number, since it uses less digits than its factorization.

76566520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914174 (or 1914170 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 76566520 is about 8750.2297112704. The cubic root of 76566520 is about 424.6322447312.

The spelling of 76566520 in words is "seventy-six million, five hundred sixty-six thousand, five hundred twenty".