25949933 has 2 divisors, whose sum is σ = 25949934. Its totient is φ = 25949932.

The previous prime is 25949899. The next prime is 25949977. The reversal of 25949933 is 33994952.

It is an a-pointer prime, because the next prime (25949977) can be obtained adding 25949933 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22915369 + 3034564 = 4787^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 25949933 - 2¹² = 25945837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25949333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12974966 + 12974967.

It is an arithmetic number, because the mean of its divisors is an integer number (12974967).

Almost surely, 2^25949933 is an apocalyptic number.

It is an amenable number.

25949933 is a deficient number, since it is larger than the sum of its proper divisors (1).

25949933 is an equidigital number, since it uses as much as digits as its factorization.

25949933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 44.

The square root of 25949933 is about 5094.1076745589. The cubic root of 25949933 is about 296.0593265855.

The spelling of 25949933 in words is "twenty-five million, nine hundred forty-nine thousand, nine hundred thirty-three".