520939100 has 72 divisors (see below), whose sum is σ = 1237327056. Its totient is φ = 188800000.

The previous prime is 520939099. The next prime is 520939127. The reversal of 520939100 is 1939025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440510 + ... + 441690.

It is an arithmetic number, because the mean of its divisors is an integer number (17185098).

Almost surely, 2^520939100 is an apocalyptic number.

520939100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520939100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618663528).

520939100 is an abundant number, since it is smaller than the sum of its proper divisors (716387956).

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

520939100 is a wasteful number, since it uses less digits than its factorization.

520939100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 520939100 is about 22824.0903433193. The cubic root of 520939100 is about 804.6289456686.

The spelling of 520939100 in words is "five hundred twenty million, nine hundred thirty-nine thousand, one hundred".