520076772 has 36 divisors (see below), whose sum is σ = 1315330380. Its totient is φ = 173267712.

The previous prime is 520076729. The next prime is 520076779. The reversal of 520076772 is 277670025.

520076772 is a `hidden beast` number, since 520 + 0 + 7 + 67 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 275029056 + 245047716 = 16584^2 + 15654^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (520076779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133768 + ... + 137600.

It is an arithmetic number, because the mean of its divisors is an integer number (36536955).

Almost surely, 2^520076772 is an apocalyptic number.

It is an amenable number.

520076772 is an abundant number, since it is smaller than the sum of its proper divisors (795253608).

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

520076772 is a wasteful number, since it uses less digits than its factorization.

520076772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612 (or 7607 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 520076772 is about 22805.1917773125. The cubic root of 520076772 is about 804.1847240214.

The spelling of 520076772 in words is "five hundred twenty million, seventy-six thousand, seven hundred seventy-two".