33204481 has 2 divisors, whose sum is σ = 33204482. Its totient is φ = 33204480.

The previous prime is 33204473. The next prime is 33204487. The reversal of 33204481 is 18440233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24910081 + 8294400 = 4991^2 + 2880^2 .

It is a cyclic number.

It is not a de Polignac number, because 33204481 - 2³ = 33204473 is a prime.

It is a super-2 number, since 2×33204481² = 2205075116958722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33204487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16602240 + 16602241.

It is an arithmetic number, because the mean of its divisors is an integer number (16602241).

Almost surely, 2^33204481 is an apocalyptic number.

It is an amenable number.

33204481 is a deficient number, since it is larger than the sum of its proper divisors (1).

33204481 is an equidigital number, since it uses as much as digits as its factorization.

33204481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 33204481 is about 5762.3329476871. The cubic root of 33204481 is about 321.4145741865.

The spelling of 33204481 in words is "thirty-three million, two hundred four thousand, four hundred eighty-one".