25716267885 has 32 divisors (see below), whose sum is σ = 51298947072. Its totient is φ = 10687279680.

The previous prime is 25716267859. The next prime is 25716267977. The reversal of 25716267885 is 58876261752.

It is not a de Polignac number, because 25716267885 - 2¹⁹ = 25715743597 is a prime.

It is a super-2 number, since 2×25716267885² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11131429 + ... + 11133738.

It is an arithmetic number, because the mean of its divisors is an integer number (1603092096).

Almost surely, 2^25716267885 is an apocalyptic number.

It is an amenable number.

25716267885 is a deficient number, since it is larger than the sum of its proper divisors (25582679187).

25716267885 is a wasteful number, since it uses less digits than its factorization.

25716267885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22265193.

The product of its digits is 11289600, while the sum is 57.

The spelling of 25716267885 in words is "twenty-five billion, seven hundred sixteen million, two hundred sixty-seven thousand, eight hundred eighty-five".