33425971 has 2 divisors, whose sum is σ = 33425972. Its totient is φ = 33425970.

The previous prime is 33425957. The next prime is 33425981. The reversal of 33425971 is 17952433.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33425971 is a prime.

It is a super-2 number, since 2×33425971² = 2234591074585682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33425941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16712985 + 16712986.

It is an arithmetic number, because the mean of its divisors is an integer number (16712986).

Almost surely, 2^33425971 is an apocalyptic number.

33425971 is a deficient number, since it is larger than the sum of its proper divisors (1).

33425971 is an equidigital number, since it uses as much as digits as its factorization.

33425971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 33425971 is about 5781.5197828945. The cubic root of 33425971 is about 322.1276547209.

The spelling of 33425971 in words is "thirty-three million, four hundred twenty-five thousand, nine hundred seventy-one".