520657068 has 24 divisors (see below), whose sum is σ = 1256759280. Its totient is φ = 167567680.

The previous prime is 520657063. The next prime is 520657087. The reversal of 520657068 is 860756025.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (520657061) 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 7 ways as a sum of consecutive naturals, for example, 747723 + ... + 748418.

It is an arithmetic number, because the mean of its divisors is an integer number (52364970).

Almost surely, 2^520657068 is an apocalyptic number.

520657068 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

520657068 is an abundant number, since it is smaller than the sum of its proper divisors (736102212).

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

520657068 is a wasteful number, since it uses less digits than its factorization.

520657068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496177 (or 1496175 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 520657068 is about 22817.9111226247. The cubic root of 520657068 is about 804.4837130327.

The spelling of 520657068 in words is "five hundred twenty million, six hundred fifty-seven thousand, sixty-eight".