33275913 has 16 divisors (see below), whose sum is σ = 49711296. Its totient is φ = 19621440.

The previous prime is 33275911. The next prime is 33275923. The reversal of 33275913 is 31957233.

It is not a de Polignac number, because 33275913 - 2¹ = 33275911 is a prime.

It is a super-2 number, since 2×33275913² = 2214572771967138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (33275911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12406 + ... + 14847.

It is an arithmetic number, because the mean of its divisors is an integer number (3106956).

Almost surely, 2^33275913 is an apocalyptic number.

33275913 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

33275913 is a deficient number, since it is larger than the sum of its proper divisors (16435383).

33275913 is a wasteful number, since it uses less digits than its factorization.

33275913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27304.

The product of its digits is 17010, while the sum is 33.

The square root of 33275913 is about 5768.5278017879. The cubic root of 33275913 is about 321.6448929156.

It can be divided in two parts, 332 and 75913, that added together give a triangular number (76245 = T₃₉₀).

The spelling of 33275913 in words is "thirty-three million, two hundred seventy-five thousand, nine hundred thirteen".