25555214071 has 2 divisors, whose sum is σ = 25555214072. Its totient is φ = 25555214070.

The previous prime is 25555214051. The next prime is 25555214077. The reversal of 25555214071 is 17041255552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25555214071 - 2¹⁷ = 25555082999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25555214071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25555214077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777607035 + 12777607036.

It is an arithmetic number, because the mean of its divisors is an integer number (12777607036).

Almost surely, 2^25555214071 is an apocalyptic number.

25555214071 is a deficient number, since it is larger than the sum of its proper divisors (1).

25555214071 is an equidigital number, since it uses as much as digits as its factorization.

25555214071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70000, while the sum is 37.

The spelling of 25555214071 in words is "twenty-five billion, five hundred fifty-five million, two hundred fourteen thousand, seventy-one".