520545500 has 24 divisors (see below), whose sum is σ = 1136872464. Its totient is φ = 208218000.

The previous prime is 520545497. The next prime is 520545547. The reversal of 520545500 is 5545025.

It is a self number, because there is not a number n which added to its sum of digits gives 520545500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520046 + ... + 521045.

It is an arithmetic number, because the mean of its divisors is an integer number (47369686).

Almost surely, 2^520545500 is an apocalyptic number.

520545500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520545500 is an abundant number, since it is smaller than the sum of its proper divisors (616326964).

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

520545500 is a wasteful number, since it uses less digits than its factorization.

520545500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041110 (or 1041098 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 520545500 is about 22815.4662455099. The cubic root of 520545500 is about 804.4262465119.

It can be divided in two parts, 5205 and 45500, that added together give a palindrome (50705).

The spelling of 520545500 in words is "five hundred twenty million, five hundred forty-five thousand, five hundred".