520555896 has 80 divisors (see below), whose sum is σ = 1666344240. Its totient is φ = 148728960.

The previous prime is 520555891. The next prime is 520555913. The reversal of 520555896 is 698555025.

520555896 is a `hidden beast` number, since 5 + 2 + 0 + 5 + 558 + 96 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520555891) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52845 + ... + 61916.

It is an arithmetic number, because the mean of its divisors is an integer number (20829303).

Almost surely, 2^520555896 is an apocalyptic number.

520555896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

520555896 is an abundant number, since it is smaller than the sum of its proper divisors (1145788344).

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

520555896 is a wasteful number, since it uses less digits than its factorization.

520555896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114786 (or 114773 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The square root of 520555896 is about 22815.6940722828. The cubic root of 520555896 is about 804.4316016375.

The spelling of 520555896 in words is "five hundred twenty million, five hundred fifty-five thousand, eight hundred ninety-six".