25340760666293 has 2 divisors, whose sum is σ = 25340760666294. Its totient is φ = 25340760666292.

The previous prime is 25340760666271. The next prime is 25340760666439. The reversal of 25340760666293 is 39266606704352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19718066893009 + 5622693773284 = 4440503^2 + 2371222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25340760666293 is a prime.

It is a super-2 number, since 2×25340760666293² (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 (25340760666223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12670380333146 + 12670380333147.

It is an arithmetic number, because the mean of its divisors is an integer number (12670380333147).

Almost surely, 2^{25340760666293} is an apocalyptic number.

It is an amenable number.

25340760666293 is a deficient number, since it is larger than the sum of its proper divisors (1).

25340760666293 is an equidigital number, since it uses as much as digits as its factorization.

25340760666293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58786560, while the sum is 59.

The spelling of 25340760666293 in words is "twenty-five trillion, three hundred forty billion, seven hundred sixty million, six hundred sixty-six thousand, two hundred ninety-three".