25768667 has 2 divisors, whose sum is σ = 25768668. Its totient is φ = 25768666.

The previous prime is 25768649. The next prime is 25768679. The reversal of 25768667 is 76686752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25768667 is a prime.

It is a super-3 number, since 3×25768667³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (25768607) 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, 12884333 + 12884334.

It is an arithmetic number, because the mean of its divisors is an integer number (12884334).

Almost surely, 2^25768667 is an apocalyptic number.

25768667 is a deficient number, since it is larger than the sum of its proper divisors (1).

25768667 is an equidigital number, since it uses as much as digits as its factorization.

25768667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 25768667 is about 5076.2847634860. The cubic root of 25768667 is about 295.3683687044.

The spelling of 25768667 in words is "twenty-five million, seven hundred sixty-eight thousand, six hundred sixty-seven".