520073300 has 36 divisors (see below), whose sum is σ = 1129586556. Its totient is φ = 207840000.

The previous prime is 520073297. The next prime is 520073303. The reversal of 520073300 is 3370025.

It is an interprime number because it is at equal distance from previous prime (520073297) and next prime (520073303).

It can be written as a sum of positive squares in 6 ways, for example, as 11751184 + 508322116 = 3428^2 + 22546^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520073303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171800 + ... + 174800.

Almost surely, 2^520073300 is an apocalyptic number.

520073300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520073300 is an abundant number, since it is smaller than the sum of its proper divisors (609513256).

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

520073300 is a wasteful number, since it uses less digits than its factorization.

520073300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748 (or 4741 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 520073300 is about 22805.1156541685. The cubic root of 520073300 is about 804.1829344551.

The spelling of 520073300 in words is "five hundred twenty million, seventy-three thousand, three hundred".