25957143 has 12 divisors (see below), whose sum is σ = 37581648. Its totient is φ = 17264160.

The previous prime is 25957111. The next prime is 25957153. The reversal of 25957143 is 34175952.

It is not a de Polignac number, because 25957143 - 2⁵ = 25957111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25957098 and 25957107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25957153) 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 11 ways as a sum of consecutive naturals, for example, 958 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (3131804).

Almost surely, 2^25957143 is an apocalyptic number.

25957143 is a deficient number, since it is larger than the sum of its proper divisors (11624505).

25957143 is a wasteful number, since it uses less digits than its factorization.

25957143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774 (or 6771 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 25957143 is about 5094.8153057790. The cubic root of 25957143 is about 296.0867433561.

The spelling of 25957143 in words is "twenty-five million, nine hundred fifty-seven thousand, one hundred forty-three".