25710871 has 2 divisors, whose sum is σ = 25710872. Its totient is φ = 25710870.

The previous prime is 25710859. The next prime is 25710887. The reversal of 25710871 is 17801752.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25710871 - 2⁹ = 25710359 is a prime.

It is a super-2 number, since 2×25710871² = 1322097775157282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25710821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12855435 + 12855436.

It is an arithmetic number, because the mean of its divisors is an integer number (12855436).

Almost surely, 2^25710871 is an apocalyptic number.

25710871 is a deficient number, since it is larger than the sum of its proper divisors (1).

25710871 is an equidigital number, since it uses as much as digits as its factorization.

25710871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 25710871 is about 5070.5888218234. The cubic root of 25710871 is about 295.1473782411.

The spelling of 25710871 in words is "twenty-five million, seven hundred ten thousand, eight hundred seventy-one".