25905962366243 has 2 divisors, whose sum is σ = 25905962366244. Its totient is φ = 25905962366242.

The previous prime is 25905962366231. The next prime is 25905962366353. The reversal of 25905962366243 is 34266326950952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25905962366243 - 2²⁰ = 25905961317667 is a prime.

It is a super-2 number, since 2×25905962366243² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25905962366143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12952981183121 + 12952981183122.

It is an arithmetic number, because the mean of its divisors is an integer number (12952981183122).

Almost surely, 2^{25905962366243} is an apocalyptic number.

25905962366243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25905962366243 is an equidigital number, since it uses as much as digits as its factorization.

25905962366243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125971200, while the sum is 62.

The spelling of 25905962366243 in words is "twenty-five trillion, nine hundred five billion, nine hundred sixty-two million, three hundred sixty-six thousand, two hundred forty-three".