25957535167 has 2 divisors, whose sum is σ = 25957535168. Its totient is φ = 25957535166.

The previous prime is 25957535147. The next prime is 25957535231. The reversal of 25957535167 is 76153575952.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25957535167 - 2³¹ = 23810051519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25957535147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12978767583 + 12978767584.

It is an arithmetic number, because the mean of its divisors is an integer number (12978767584).

Almost surely, 2^25957535167 is an apocalyptic number.

25957535167 is a deficient number, since it is larger than the sum of its proper divisors (1).

25957535167 is an equidigital number, since it uses as much as digits as its factorization.

25957535167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9922500, while the sum is 55.

The spelling of 25957535167 in words is "twenty-five billion, nine hundred fifty-seven million, five hundred thirty-five thousand, one hundred sixty-seven".