520777012 has 48 divisors (see below), whose sum is σ = 1080414720. Its totient is φ = 214905600.

The previous prime is 520777009. The next prime is 520777021. The reversal of 520777012 is 210777025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422437 + ... + 423667.

It is an arithmetic number, because the mean of its divisors is an integer number (22508640).

Almost surely, 2^520777012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520777012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540207360).

520777012 is an abundant number, since it is smaller than the sum of its proper divisors (559637708).

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

520777012 is a wasteful number, since it uses less digits than its factorization.

520777012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 31.

The square root of 520777012 is about 22820.5392574321. The cubic root of 520777012 is about 804.5454847129.

The spelling of 520777012 in words is "five hundred twenty million, seven hundred seventy-seven thousand, twelve".