25255295075477 has 2 divisors, whose sum is σ = 25255295075478. Its totient is φ = 25255295075476.

The previous prime is 25255295075377. The next prime is 25255295075503. The reversal of 25255295075477 is 77457059255252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22491059640676 + 2764235434801 = 4742474^2 + 1662599^2 .

It is a cyclic number.

It is not a de Polignac number, because 25255295075477 - 2⁸ = 25255295075221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25255295075377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12627647537738 + 12627647537739.

It is an arithmetic number, because the mean of its divisors is an integer number (12627647537739).

Almost surely, 2^{25255295075477} is an apocalyptic number.

It is an amenable number.

25255295075477 is a deficient number, since it is larger than the sum of its proper divisors (1).

25255295075477 is an equidigital number, since it uses as much as digits as its factorization.

25255295075477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 308700000, while the sum is 65.

The spelling of 25255295075477 in words is "twenty-five trillion, two hundred fifty-five billion, two hundred ninety-five million, seventy-five thousand, four hundred seventy-seven".