25775827825 has 12 divisors (see below), whose sum is σ = 34867665648. Its totient is φ = 18746056400.

The previous prime is 25775827811. The next prime is 25775827849. The reversal of 25775827825 is 52872857752.

It is a happy number.

It is not a de Polignac number, because 25775827825 - 2⁹ = 25775827313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25775827825.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46864867 + ... + 46865416.

It is an arithmetic number, because the mean of its divisors is an integer number (2905638804).

Almost surely, 2^25775827825 is an apocalyptic number.

25775827825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25775827825 is a deficient number, since it is larger than the sum of its proper divisors (9091837823).

25775827825 is a wasteful number, since it uses less digits than its factorization.

25775827825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93730304 (or 93730299 counting only the distinct ones).

The product of its digits is 21952000, while the sum is 58.

The spelling of 25775827825 in words is "twenty-five billion, seven hundred seventy-five million, eight hundred twenty-seven thousand, eight hundred twenty-five".