521024052 has 12 divisors (see below), whose sum is σ = 1215722816. Its totient is φ = 173674680.

The previous prime is 521024051. The next prime is 521024111. The reversal of 521024052 is 250420125.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521024051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21709324 + ... + 21709347.

Almost surely, 2^521024052 is an apocalyptic number.

It is an amenable number.

521024052 is an abundant number, since it is smaller than the sum of its proper divisors (694698764).

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

521024052 is a wasteful number, since it uses less digits than its factorization.

521024052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43418678 (or 43418676 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 521024052 is about 22825.9512835720. The cubic root of 521024052 is about 804.6726815057.

Adding to 521024052 its reverse (250420125), we get a palindrome (771444177).

The spelling of 521024052 in words is "five hundred twenty-one million, twenty-four thousand, fifty-two".