25967831 has 4 divisors (see below), whose sum is σ = 26066832. Its totient is φ = 25868832.

The previous prime is 25967803. The next prime is 25967839. The reversal of 25967831 is 13876952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25967831 - 2¹⁴ = 25951447 is a prime.

It is a super-2 number, since 2×25967831² = 1348656493689122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25967839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49106 + ... + 49631.

It is an arithmetic number, because the mean of its divisors is an integer number (6516708).

Almost surely, 2^25967831 is an apocalyptic number.

25967831 is a deficient number, since it is larger than the sum of its proper divisors (99001).

25967831 is an equidigital number, since it uses as much as digits as its factorization.

25967831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99000.

The product of its digits is 90720, while the sum is 41.

The square root of 25967831 is about 5095.8641072933. The cubic root of 25967831 is about 296.1273762418.

The spelling of 25967831 in words is "twenty-five million, nine hundred sixty-seven thousand, eight hundred thirty-one".