25713869 has 2 divisors, whose sum is σ = 25713870. Its totient is φ = 25713868.

The previous prime is 25713833. The next prime is 25713901. The reversal of 25713869 is 96831752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24304900 + 1408969 = 4930^2 + 1187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25713869 is a prime.

It is a super-2 number, since 2×25713869² = 1322406117898322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25713769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12856934 + 12856935.

It is an arithmetic number, because the mean of its divisors is an integer number (12856935).

Almost surely, 2^25713869 is an apocalyptic number.

It is an amenable number.

25713869 is a deficient number, since it is larger than the sum of its proper divisors (1).

25713869 is an equidigital number, since it uses as much as digits as its factorization.

25713869 is an evil number, because the sum of its binary digits is even.

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

The square root of 25713869 is about 5070.8844396219. The cubic root of 25713869 is about 295.1588496203.

The spelling of 25713869 in words is "twenty-five million, seven hundred thirteen thousand, eight hundred sixty-nine".