25673231 has 2 divisors, whose sum is σ = 25673232. Its totient is φ = 25673230.

The previous prime is 25673203. The next prime is 25673243. The reversal of 25673231 is 13237652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25673231 is a prime.

It is a super-2 number, since 2×25673231² = 1318229579958722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25673194 and 25673203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25673251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12836615 + 12836616.

It is an arithmetic number, because the mean of its divisors is an integer number (12836616).

Almost surely, 2^25673231 is an apocalyptic number.

25673231 is a deficient number, since it is larger than the sum of its proper divisors (1).

25673231 is an equidigital number, since it uses as much as digits as its factorization.

25673231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 29.

The square root of 25673231 is about 5066.8758619094. The cubic root of 25673231 is about 295.0032787149.

The spelling of 25673231 in words is "twenty-five million, six hundred seventy-three thousand, two hundred thirty-one".