25306286867 has 2 divisors, whose sum is σ = 25306286868. Its totient is φ = 25306286866.

The previous prime is 25306286839. The next prime is 25306286879. The reversal of 25306286867 is 76868260352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25306286867 - 2¹⁰ = 25306285843 is a prime.

It is not a weakly prime, because it can be changed into another prime (25306286897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12653143433 + 12653143434.

It is an arithmetic number, because the mean of its divisors is an integer number (12653143434).

Almost surely, 2^25306286867 is an apocalyptic number.

25306286867 is a deficient number, since it is larger than the sum of its proper divisors (1).

25306286867 is an equidigital number, since it uses as much as digits as its factorization.

25306286867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 25306286867 in words is "twenty-five billion, three hundred six million, two hundred eighty-six thousand, eight hundred sixty-seven".