25717063927 has 2 divisors, whose sum is σ = 25717063928. Its totient is φ = 25717063926.

The previous prime is 25717063921. The next prime is 25717063943. The reversal of 25717063927 is 72936071752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25717063927 - 2²³ = 25708675319 is a prime.

It is a super-3 number, since 3×25717063927³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25717063921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12858531963 + 12858531964.

It is an arithmetic number, because the mean of its divisors is an integer number (12858531964).

Almost surely, 2^25717063927 is an apocalyptic number.

25717063927 is a deficient number, since it is larger than the sum of its proper divisors (1).

25717063927 is an equidigital number, since it uses as much as digits as its factorization.

25717063927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 25717063927 in words is "twenty-five billion, seven hundred seventeen million, sixty-three thousand, nine hundred twenty-seven".