25285242841 has 8 divisors (see below), whose sum is σ = 25406580744. Its totient is φ = 25164167040.

The previous prime is 25285242833. The next prime is 25285242847. The reversal of 25285242841 is 14824258252.

It can be written as a sum of positive squares in 4 ways, for example, as 23319241 + 25261923600 = 4829^2 + 158940^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25285242841 - 2³ = 25285242833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25285242847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129261 + ... + 259381.

It is an arithmetic number, because the mean of its divisors is an integer number (3175822593).

Almost surely, 2^25285242841 is an apocalyptic number.

It is an amenable number.

25285242841 is a deficient number, since it is larger than the sum of its proper divisors (121337903).

25285242841 is a wasteful number, since it uses less digits than its factorization.

25285242841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131051.

The product of its digits is 409600, while the sum is 43.

The spelling of 25285242841 in words is "twenty-five billion, two hundred eighty-five million, two hundred forty-two thousand, eight hundred forty-one".