33054921 has 6 divisors (see below), whose sum is σ = 47746010. Its totient is φ = 22036608.

The previous prime is 33054907. The next prime is 33054929. The reversal of 33054921 is 12945033.

It can be written as a sum of positive squares in only one way, i.e., 18147600 + 14907321 = 4260^2 + 3861^2 .

It is not a de Polignac number, because 33054921 - 2⁷ = 33054793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33054929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1836376 + ... + 1836393.

Almost surely, 2^33054921 is an apocalyptic number.

It is an amenable number.

33054921 is a deficient number, since it is larger than the sum of its proper divisors (14691089).

33054921 is a wasteful number, since it uses less digits than its factorization.

33054921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672775 (or 3672772 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 33054921 is about 5749.3409187489. The cubic root of 33054921 is about 320.9312747739.

Adding to 33054921 its reverse (12945033), we get a palindrome (45999954).

The spelling of 33054921 in words is "thirty-three million, fifty-four thousand, nine hundred twenty-one".