33540252 has 24 divisors (see below), whose sum is σ = 82864656. Its totient is φ = 10522368.

The previous prime is 33540251. The next prime is 33540253. The reversal of 33540252 is 25204533.

It is an interprime number because it is at equal distance from previous prime (33540251) and next prime (33540253).

It is a super-2 number, since 2×33540252² = 2249897008447008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33540251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82003 + ... + 82410.

It is an arithmetic number, because the mean of its divisors is an integer number (3452694).

Almost surely, 2^33540252 is an apocalyptic number.

It is an amenable number.

33540252 is an abundant number, since it is smaller than the sum of its proper divisors (49324404).

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

33540252 is a wasteful number, since it uses less digits than its factorization.

33540252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164437 (or 164435 counting only the distinct ones).

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

The square root of 33540252 is about 5791.3946506865. The cubic root of 33540252 is about 322.4943475964.

Adding to 33540252 its reverse (25204533), we get a palindrome (58744785).

The spelling of 33540252 in words is "thirty-three million, five hundred forty thousand, two hundred fifty-two".