521130200 has 48 divisors (see below), whose sum is σ = 1244392080. Its totient is φ = 202815360.

The previous prime is 521130193. The next prime is 521130217. The reversal of 521130200 is 2031125.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27812 + ... + 42611.

It is an arithmetic number, because the mean of its divisors is an integer number (25924835).

Almost surely, 2^521130200 is an apocalyptic number.

521130200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

521130200 is an abundant number, since it is smaller than the sum of its proper divisors (723261880).

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

521130200 is a wasteful number, since it uses less digits than its factorization.

521130200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70476 (or 70467 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 521130200 is about 22828.2763256449. The cubic root of 521130200 is about 804.7273229985.

Adding to 521130200 its reverse (2031125), we get a palindrome (523161325).

The spelling of 521130200 in words is "five hundred twenty-one million, one hundred thirty thousand, two hundred".