25558878011371 has 2 divisors, whose sum is σ = 25558878011372. Its totient is φ = 25558878011370.

The previous prime is 25558878011357. The next prime is 25558878011377. The reversal of 25558878011371 is 17311087885552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25558878011371 - 2¹⁹ = 25558877487083 is a prime.

It is not a weakly prime, because it can be changed into another prime (25558878011377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12779439005685 + 12779439005686.

It is an arithmetic number, because the mean of its divisors is an integer number (12779439005686).

Almost surely, 2^{25558878011371} is an apocalyptic number.

25558878011371 is a deficient number, since it is larger than the sum of its proper divisors (1).

25558878011371 is an equidigital number, since it uses as much as digits as its factorization.

25558878011371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816000, while the sum is 61.

The spelling of 25558878011371 in words is "twenty-five trillion, five hundred fifty-eight billion, eight hundred seventy-eight million, eleven thousand, three hundred seventy-one".