25773791 has 2 divisors, whose sum is σ = 25773792. Its totient is φ = 25773790.

The previous prime is 25773767. The next prime is 25773809. The reversal of 25773791 is 19737752.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25773791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25773701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886895 + 12886896.

It is an arithmetic number, because the mean of its divisors is an integer number (12886896).

Almost surely, 2^25773791 is an apocalyptic number.

25773791 is a deficient number, since it is larger than the sum of its proper divisors (1).

25773791 is an equidigital number, since it uses as much as digits as its factorization.

25773791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92610, while the sum is 41.

The square root of 25773791 is about 5076.7894382178. The cubic root of 25773791 is about 295.3879450270.

The spelling of 25773791 in words is "twenty-five million, seven hundred seventy-three thousand, seven hundred ninety-one".