520888440000 has 140 divisors (see below), whose sum is σ = 1722179120024. Its totient is φ = 138903552000.

The previous prime is 520888439983. The next prime is 520888440001. The reversal of 520888440000 is 44888025.

It is not an unprimeable number, because it can be changed into a prime (520888440001) 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, 2050369 + ... + 2290368.

Almost surely, 2^520888440000 is an apocalyptic number.

520888440000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520888440000 is an abundant number, since it is smaller than the sum of its proper divisors (1201290680024).

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

520888440000 is an equidigital number, since it uses as much as digits as its factorization.

520888440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340772 (or 4340747 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The spelling of 520888440000 in words is "five hundred twenty billion, eight hundred eighty-eight million, four hundred forty thousand".