25945131 has 8 divisors (see below), whose sum is σ = 34670080. Its totient is φ = 17258472.

The previous prime is 25945099. The next prime is 25945163. The reversal of 25945131 is 13154952.

It is an interprime number because it is at equal distance from previous prime (25945099) and next prime (25945163).

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

It is not a de Polignac number, because 25945131 - 2⁵ = 25945099 is a prime.

It is a super-2 number, since 2×25945131² = 1346299645214322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25945531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7951 + ... + 10728.

It is an arithmetic number, because the mean of its divisors is an integer number (4333760).

Almost surely, 2^25945131 is an apocalyptic number.

25945131 is a deficient number, since it is larger than the sum of its proper divisors (8724949).

25945131 is a wasteful number, since it uses less digits than its factorization.

25945131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19145.

The product of its digits is 5400, while the sum is 30.

The square root of 25945131 is about 5093.6363238849. The cubic root of 25945131 is about 296.0410636663.

The spelling of 25945131 in words is "twenty-five million, nine hundred forty-five thousand, one hundred thirty-one".