33250001 has 2 divisors, whose sum is σ = 33250002. Its totient is φ = 33250000.

The previous prime is 33249991. The next prime is 33250031. The reversal of 33250001 is 10005233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32092225 + 1157776 = 5665^2 + 1076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33250001 is a prime.

It is a super-2 number, since 2×33250001² = 2211125133000002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (33250031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16625000 + 16625001.

It is an arithmetic number, because the mean of its divisors is an integer number (16625001).

Almost surely, 2^33250001 is an apocalyptic number.

It is an amenable number.

33250001 is a deficient number, since it is larger than the sum of its proper divisors (1).

33250001 is an equidigital number, since it uses as much as digits as its factorization.

33250001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 33250001 is about 5766.2813840464. The cubic root of 33250001 is about 321.5613827927.

Adding to 33250001 its reverse (10005233), we get a palindrome (43255234).

The spelling of 33250001 in words is "thirty-three million, two hundred fifty thousand, one".