33250540 has 12 divisors (see below), whose sum is σ = 69826176. Its totient is φ = 13300208.

The previous prime is 33250537. The next prime is 33250543. The reversal of 33250540 is 4505233.

It is an interprime number because it is at equal distance from previous prime (33250537) and next prime (33250543).

It is a super-2 number, since 2×33250540² = 2211196820583200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33250543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831244 + ... + 831283.

It is an arithmetic number, because the mean of its divisors is an integer number (5818848).

Almost surely, 2^33250540 is an apocalyptic number.

It is an amenable number.

33250540 is an abundant number, since it is smaller than the sum of its proper divisors (36575636).

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

33250540 is a wasteful number, since it uses less digits than its factorization.

33250540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662536 (or 1662534 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 33250540 is about 5766.3281210836. The cubic root of 33250540 is about 321.5631203430.

Adding to 33250540 its reverse (4505233), we get a palindrome (37755773).

The spelling of 33250540 in words is "thirty-three million, two hundred fifty thousand, five hundred forty".