25887161 has 16 divisors (see below), whose sum is σ = 27808704. Its totient is φ = 24058944.

The previous prime is 25887157. The next prime is 25887223. The reversal of 25887161 is 16178852.

It is a cyclic number.

It is not a de Polignac number, because 25887161 - 2² = 25887157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25887061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84170 + ... + 84476.

It is an arithmetic number, because the mean of its divisors is an integer number (1738044).

Almost surely, 2^25887161 is an apocalyptic number.

It is an amenable number.

25887161 is a deficient number, since it is larger than the sum of its proper divisors (1921543).

25887161 is a wasteful number, since it uses less digits than its factorization.

25887161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its digits is 26880, while the sum is 38.

The square root of 25887161 is about 5087.9427080108. The cubic root of 25887161 is about 295.8204147150.

The spelling of 25887161 in words is "twenty-five million, eight hundred eighty-seven thousand, one hundred sixty-one".