521411202 has 64 divisors (see below), whose sum is σ = 1269072000. Its totient is φ = 157702464.

The previous prime is 521411197. The next prime is 521411203. The reversal of 521411202 is 202114125.

521411202 is a `hidden beast` number, since 52 + 1 + 411 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (521411203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35124 + ... + 47712.

It is an arithmetic number, because the mean of its divisors is an integer number (19829250).

Almost surely, 2^521411202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521411202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634536000).

521411202 is an abundant number, since it is smaller than the sum of its proper divisors (747660798).

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

521411202 is a wasteful number, since it uses less digits than its factorization.

521411202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12672 (or 12666 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 521411202 is about 22834.4301877669. The cubic root of 521411202 is about 804.8719377577.

Adding to 521411202 its reverse (202114125), we get a palindrome (723525327).

The spelling of 521411202 in words is "five hundred twenty-one million, four hundred eleven thousand, two hundred two".