33205057 has 2 divisors, whose sum is σ = 33205058. Its totient is φ = 33205056.

The previous prime is 33205049. The next prime is 33205069. The reversal of 33205057 is 75050233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28047616 + 5157441 = 5296^2 + 2271^2 .

It is an emirp because it is prime and its reverse (75050233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33205057 - 2³ = 33205049 is a prime.

It is a super-2 number, since 2×33205057² = 2205151620746498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33245057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16602528 + 16602529.

It is an arithmetic number, because the mean of its divisors is an integer number (16602529).

Almost surely, 2^33205057 is an apocalyptic number.

It is an amenable number.

33205057 is a deficient number, since it is larger than the sum of its proper divisors (1).

33205057 is an equidigital number, since it uses as much as digits as its factorization.

33205057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 33205057 is about 5762.3829272272. The cubic root of 33205057 is about 321.4164327080.

The spelling of 33205057 in words is "thirty-three million, two hundred five thousand, fifty-seven".