25000033 has 2 divisors, whose sum is σ = 25000034. Its totient is φ = 25000032.

The previous prime is 25000009. The next prime is 25000069. The reversal of 25000033 is 33000052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24830289 + 169744 = 4983^2 + 412^2 .

It is a cyclic number.

It is not a de Polignac number, because 25000033 - 2⁹ = 24999521 is a prime.

25000033 is a modest number, since divided by 33 gives 25 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 24999977 and 25000022.

It is not a weakly prime, because it can be changed into another prime (25000133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500016 + 12500017.

It is an arithmetic number, because the mean of its divisors is an integer number (12500017).

Almost surely, 2^25000033 is an apocalyptic number.

It is an amenable number.

25000033 is a deficient number, since it is larger than the sum of its proper divisors (1).

25000033 is an equidigital number, since it uses as much as digits as its factorization.

25000033 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 13.

The square root of 25000033 is about 5000.0032999989. The cubic root of 25000033 is about 292.4019024780.

Adding to 25000033 its reverse (33000052), we get a palindrome (58000085).

The spelling of 25000033 in words is "twenty-five million, thirty-three", and thus it is an aban number and an uban number.