5133521442 has 64 divisors (see below), whose sum is σ = 12049090560. Its totient is φ = 1427791104.

The previous prime is 5133521413. The next prime is 5133521447. The reversal of 5133521442 is 2441253315.

It is not an unprimeable number, because it can be changed into a prime (5133521447) 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, 245178 + ... + 265290.

It is an arithmetic number, because the mean of its divisors is an integer number (188267040).

Almost surely, 2^5133521442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5133521442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6024545280).

5133521442 is an abundant number, since it is smaller than the sum of its proper divisors (6915569118).

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

5133521442 is a wasteful number, since it uses less digits than its factorization.

5133521442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20287.

The product of its digits is 14400, while the sum is 30.

The square root of 5133521442 is about 71648.5969297376. The cubic root of 5133521442 is about 1725.0636612506.

Adding to 5133521442 its reverse (2441253315), we get a palindrome (7574774757).

The spelling of 5133521442 in words is "five billion, one hundred thirty-three million, five hundred twenty-one thousand, four hundred forty-two".