5121531252 has 36 divisors (see below), whose sum is σ = 12948928356. Its totient is φ = 1706803200.

The previous prime is 5121531251. The next prime is 5121531313. The reversal of 5121531252 is 2521351215.

5121531252 is a `hidden beast` number, since 5 + 121 + 531 + 2 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5039012196 + 82519056 = 70986^2 + 9084^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121531251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187252 + ... + 212852.

Almost surely, 2^5121531252 is an apocalyptic number.

It is an amenable number.

5121531252 is an abundant number, since it is smaller than the sum of its proper divisors (7827397104).

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

5121531252 is a wasteful number, since it uses less digits than its factorization.

5121531252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31168 (or 31163 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 5121531252 is about 71564.8744287307. The cubic root of 5121531252 is about 1723.7195569007.

Adding to 5121531252 its reverse (2521351215), we get a palindrome (7642882467).

The spelling of 5121531252 in words is "five billion, one hundred twenty-one million, five hundred thirty-one thousand, two hundred fifty-two".