521200052 has 12 divisors (see below), whose sum is σ = 912309216. Its totient is φ = 260540280.

The previous prime is 521200037. The next prime is 521200067. The reversal of 521200052 is 250002125.

It is an interprime number because it is at equal distance from previous prime (521200037) and next prime (521200067).

It is a self number, because there is not a number n which added to its sum of digits gives 521200052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8927 + ... + 33497.

It is an arithmetic number, because the mean of its divisors is an integer number (76025768).

Almost surely, 2^521200052 is an apocalyptic number.

It is an amenable number.

521200052 is a deficient number, since it is larger than the sum of its proper divisors (391109164).

521200052 is a wasteful number, since it uses less digits than its factorization.

521200052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29878 (or 29876 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 521200052 is about 22829.8062190637. The cubic root of 521200052 is about 804.7632764587.

Adding to 521200052 its reverse (250002125), we get a palindrome (771202177).

The spelling of 521200052 in words is "five hundred twenty-one million, two hundred thousand, fifty-two".