33252540 has 24 divisors (see below), whose sum is σ = 93107280. Its totient is φ = 8867328.

The previous prime is 33252523. The next prime is 33252551. The reversal of 33252540 is 4525233.

It is a super-2 number, since 2×33252540² = 2211462832903200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33252540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277045 + ... + 277164.

It is an arithmetic number, because the mean of its divisors is an integer number (3879470).

Almost surely, 2^33252540 is an apocalyptic number.

33252540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33252540 is an abundant number, since it is smaller than the sum of its proper divisors (59854740).

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

33252540 is a wasteful number, since it uses less digits than its factorization.

33252540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554221 (or 554219 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 33252540 is about 5766.5015390616. The cubic root of 33252540 is about 321.5695674899.

Adding to 33252540 its reverse (4525233), we get a palindrome (37777773).

The spelling of 33252540 in words is "thirty-three million, two hundred fifty-two thousand, five hundred forty".