25710571 has 2 divisors, whose sum is σ = 25710572. Its totient is φ = 25710570.

The previous prime is 25710557. The next prime is 25710589. The reversal of 25710571 is 17501752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25710571 - 2⁵ = 25710539 is a prime.

It is a super-2 number, since 2×25710571² = 1322066922292082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25710541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12855285 + 12855286.

It is an arithmetic number, because the mean of its divisors is an integer number (12855286).

Almost surely, 2^25710571 is an apocalyptic number.

25710571 is a deficient number, since it is larger than the sum of its proper divisors (1).

25710571 is an equidigital number, since it uses as much as digits as its factorization.

25710571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 25710571 is about 5070.5592393739. The cubic root of 25710571 is about 295.1462302888.

The spelling of 25710571 in words is "twenty-five million, seven hundred ten thousand, five hundred seventy-one".