25825706885 has 16 divisors (see below), whose sum is σ = 34215531840. Its totient is φ = 18556035840.

The previous prime is 25825706869. The next prime is 25825706903. The reversal of 25825706885 is 58860752852.

It is not a de Polignac number, because 25825706885 - 2⁴ = 25825706869 is a prime.

It is a super-2 number, since 2×25825706885² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25825706885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2824100 + ... + 2833229.

It is an arithmetic number, because the mean of its divisors is an integer number (2138470740).

Almost surely, 2^25825706885 is an apocalyptic number.

It is an amenable number.

25825706885 is a deficient number, since it is larger than the sum of its proper divisors (8389824955).

25825706885 is a wasteful number, since it uses less digits than its factorization.

25825706885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657428.

The product of its (nonzero) digits is 10752000, while the sum is 56.

The spelling of 25825706885 in words is "twenty-five billion, eight hundred twenty-five million, seven hundred six thousand, eight hundred eighty-five".