25514454212069 has 2 divisors, whose sum is σ = 25514454212070. Its totient is φ = 25514454212068.

The previous prime is 25514454211927. The next prime is 25514454212081. The reversal of 25514454212069 is 96021245441552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17982366075844 + 7532088136225 = 4240562^2 + 2744465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25514454212069 is a prime.

It is a super-2 number, since 2×25514454212069² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25514454212089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12757227106034 + 12757227106035.

It is an arithmetic number, because the mean of its divisors is an integer number (12757227106035).

Almost surely, 2^{25514454212069} is an apocalyptic number.

It is an amenable number.

25514454212069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25514454212069 is an equidigital number, since it uses as much as digits as its factorization.

25514454212069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 25514454212069 in words is "twenty-five trillion, five hundred fourteen billion, four hundred fifty-four million, two hundred twelve thousand, sixty-nine".