3531321252 has 24 divisors (see below), whose sum is σ = 9155277600. Its totient is φ = 1177107048.

The previous prime is 3531321223. The next prime is 3531321253. The reversal of 3531321252 is 2521231353.

It is a happy number.

3531321252 is a `hidden beast` number, since 3 + 531 + 3 + 2 + 125 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3531321253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16348602 + ... + 16348817.

It is an arithmetic number, because the mean of its divisors is an integer number (381469900).

Almost surely, 2^3531321252 is an apocalyptic number.

It is an amenable number.

3531321252 is an abundant number, since it is smaller than the sum of its proper divisors (5623956348).

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

3531321252 is a wasteful number, since it uses less digits than its factorization.

3531321252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32697432 (or 32697424 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 3531321252 is about 59424.9211358332. The cubic root of 3531321252 is about 1522.8100792882.

It can be divided in two parts, 35313 and 21252, that added together give a palindrome (56565).

The spelling of 3531321252 in words is "three billion, five hundred thirty-one million, three hundred twenty-one thousand, two hundred fifty-two".