25220033 has 2 divisors, whose sum is σ = 25220034. Its totient is φ = 25220032.

The previous prime is 25219991. The next prime is 25220057. The reversal of 25220033 is 33002252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24880144 + 339889 = 4988^2 + 583^2 .

It is a cyclic number.

It is not a de Polignac number, because 25220033 - 2⁶ = 25219969 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25219993 and 25220020.

It is not a weakly prime, because it can be changed into another prime (25229033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12610016 + 12610017.

It is an arithmetic number, because the mean of its divisors is an integer number (12610017).

Almost surely, 2^25220033 is an apocalyptic number.

It is an amenable number.

25220033 is a deficient number, since it is larger than the sum of its proper divisors (1).

25220033 is an equidigital number, since it uses as much as digits as its factorization.

25220033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 25220033 is about 5021.9550973699. The cubic root of 25220033 is about 293.2571098723.

Adding to 25220033 its reverse (33002252), we get a palindrome (58222285).

The spelling of 25220033 in words is "twenty-five million, two hundred twenty thousand, thirty-three".