25872995181 has 32 divisors (see below), whose sum is σ = 40002450048. Its totient is φ = 14700707840.

The previous prime is 25872995177. The next prime is 25872995257. The reversal of 25872995181 is 18159927852.

It is not a de Polignac number, because 25872995181 - 2² = 25872995177 is a prime.

It is a super-2 number, since 2×25872995181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25872995881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54451 + ... + 233903.

It is an arithmetic number, because the mean of its divisors is an integer number (1250076564).

Almost surely, 2^25872995181 is an apocalyptic number.

It is an amenable number.

25872995181 is a deficient number, since it is larger than the sum of its proper divisors (14129454867).

25872995181 is a wasteful number, since it uses less digits than its factorization.

25872995181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179741.

The product of its digits is 3628800, while the sum is 57.

The spelling of 25872995181 in words is "twenty-five billion, eight hundred seventy-two million, nine hundred ninety-five thousand, one hundred eighty-one".