25285867111 has 2 divisors, whose sum is σ = 25285867112. Its totient is φ = 25285867110.

The previous prime is 25285867069. The next prime is 25285867127. The reversal of 25285867111 is 11176858252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25285867111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25285867511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12642933555 + 12642933556.

It is an arithmetic number, because the mean of its divisors is an integer number (12642933556).

Almost surely, 2^25285867111 is an apocalyptic number.

25285867111 is a deficient number, since it is larger than the sum of its proper divisors (1).

25285867111 is an equidigital number, since it uses as much as digits as its factorization.

25285867111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 268800, while the sum is 46.

The spelling of 25285867111 in words is "twenty-five billion, two hundred eighty-five million, eight hundred sixty-seven thousand, one hundred eleven".