33231252 has 24 divisors (see below), whose sum is σ = 77638176. Its totient is φ = 11063008.

The previous prime is 33231241. The next prime is 33231257. The reversal of 33231252 is 25213233.

It is a super-2 number, since 2×33231252² = 2208632218975008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33231257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13078 + ... + 15410.

It is an arithmetic number, because the mean of its divisors is an integer number (3234924).

Almost surely, 2^33231252 is an apocalyptic number.

It is an amenable number.

33231252 is an abundant number, since it is smaller than the sum of its proper divisors (44406924).

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

33231252 is a wasteful number, since it uses less digits than its factorization.

33231252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527 (or 3525 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 33231252 is about 5764.6554103433. The cubic root of 33231252 is about 321.5009307852.

Adding to 33231252 its reverse (25213233), we get a palindrome (58444485).

The spelling of 33231252 in words is "thirty-three million, two hundred thirty-one thousand, two hundred fifty-two".