25871069 has 6 divisors (see below), whose sum is σ = 30094974. Its totient is φ = 22175160.

The previous prime is 25871063. The next prime is 25871077. The reversal of 25871069 is 96017852.

It can be written as a sum of positive squares in only one way, i.e., 19695844 + 6175225 = 4438^2 + 2485^2 .

It is not a de Polignac number, because 25871069 - 2²⁴ = 9093853 is a prime.

It is a super-2 number, since 2×25871069² = 1338624422405522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25871063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263942 + ... + 264039.

It is an arithmetic number, because the mean of its divisors is an integer number (5015829).

Almost surely, 2^25871069 is an apocalyptic number.

It is an amenable number.

25871069 is a deficient number, since it is larger than the sum of its proper divisors (4223905).

25871069 is an equidigital number, since it uses as much as digits as its factorization.

25871069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527995 (or 527988 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 25871069 is about 5086.3610764475. The cubic root of 25871069 is about 295.7591059601.

The spelling of 25871069 in words is "twenty-five million, eight hundred seventy-one thousand, sixty-nine".