521212060 has 48 divisors (see below), whose sum is σ = 1119740832. Its totient is φ = 203731200.

The previous prime is 521212057. The next prime is 521212091. The reversal of 521212060 is 60212125.

It is a super-2 number, since 2×521212060² = 543324022978887200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197550 + ... + 200170.

It is an arithmetic number, because the mean of its divisors is an integer number (23327934).

Almost surely, 2^521212060 is an apocalyptic number.

It is an amenable number.

521212060 is an abundant number, since it is smaller than the sum of its proper divisors (598528772).

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

521212060 is a wasteful number, since it uses less digits than its factorization.

521212060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854 (or 2852 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 521212060 is about 22830.0692070786. The cubic root of 521212060 is about 804.7694567620.

Adding to 521212060 its reverse (60212125), we get a palindrome (581424185).

The spelling of 521212060 in words is "five hundred twenty-one million, two hundred twelve thousand, sixty".