25675587767 has 4 divisors (see below), whose sum is σ = 25773213840. Its totient is φ = 25577961696.

The previous prime is 25675587761. The next prime is 25675587793. The reversal of 25675587767 is 76778557652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25675587767 - 2¹⁶ = 25675522231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25675587761) 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 in 3 ways as a sum of consecutive naturals, for example, 48812642 + ... + 48813167.

It is an arithmetic number, because the mean of its divisors is an integer number (6443303460).

Almost surely, 2^25675587767 is an apocalyptic number.

25675587767 is a deficient number, since it is larger than the sum of its proper divisors (97626073).

25675587767 is an equidigital number, since it uses as much as digits as its factorization.

25675587767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97626072.

The product of its digits is 172872000, while the sum is 65.

The spelling of 25675587767 in words is "twenty-five billion, six hundred seventy-five million, five hundred eighty-seven thousand, seven hundred sixty-seven".