25983511 has 2 divisors, whose sum is σ = 25983512. Its totient is φ = 25983510.

The previous prime is 25983467. The next prime is 25983571. The reversal of 25983511 is 11538952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25983511 - 2¹⁹ = 25459223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25983571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12991755 + 12991756.

It is an arithmetic number, because the mean of its divisors is an integer number (12991756).

Almost surely, 2^25983511 is an apocalyptic number.

25983511 is a deficient number, since it is larger than the sum of its proper divisors (1).

25983511 is an equidigital number, since it uses as much as digits as its factorization.

25983511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 34.

The square root of 25983511 is about 5097.4023776822. The cubic root of 25983511 is about 296.1869671897.

The spelling of 25983511 in words is "twenty-five million, nine hundred eighty-three thousand, five hundred eleven".