25159038081 has 8 divisors (see below), whose sum is σ = 35310930720. Its totient is φ = 15889918752.

The previous prime is 25159038071. The next prime is 25159038127. The reversal of 25159038081 is 18083095152.

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

It is not a de Polignac number, because 25159038081 - 2⁵ = 25159038049 is a prime.

It is a super-2 number, since 2×25159038081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25159038011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 220693260 + ... + 220693373.

It is an arithmetic number, because the mean of its divisors is an integer number (4413866340).

Almost surely, 2^25159038081 is an apocalyptic number.

It is an amenable number.

25159038081 is a deficient number, since it is larger than the sum of its proper divisors (10151892639).

25159038081 is a wasteful number, since it uses less digits than its factorization.

25159038081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441386655.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 25159038081 in words is "twenty-five billion, one hundred fifty-nine million, thirty-eight thousand, eighty-one".