25258673879 has 2 divisors, whose sum is σ = 25258673880. Its totient is φ = 25258673878.

The previous prime is 25258673873. The next prime is 25258673887. The reversal of 25258673879 is 97837685252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25258673879 - 2²⁸ = 24990238423 is a prime.

It is a super-2 number, since 2×25258673879² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25258673873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12629336939 + 12629336940.

It is an arithmetic number, because the mean of its divisors is an integer number (12629336940).

Almost surely, 2^25258673879 is an apocalyptic number.

25258673879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25258673879 is an equidigital number, since it uses as much as digits as its factorization.

25258673879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50803200, while the sum is 62.

The spelling of 25258673879 in words is "twenty-five billion, two hundred fifty-eight million, six hundred seventy-three thousand, eight hundred seventy-nine".