25290793906577 has 2 divisors, whose sum is σ = 25290793906578. Its totient is φ = 25290793906576.

The previous prime is 25290793906549. The next prime is 25290793906583. The reversal of 25290793906577 is 77560939709252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19373061402256 + 5917732504321 = 4401484^2 + 2432639^2 .

It is a cyclic number.

It is not a de Polignac number, because 25290793906577 - 2⁶ = 25290793906513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25290793906577.

It is not a weakly prime, because it can be changed into another prime (25290793906537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12645396953288 + 12645396953289.

It is an arithmetic number, because the mean of its divisors is an integer number (12645396953289).

Almost surely, 2^{25290793906577} is an apocalyptic number.

It is an amenable number.

25290793906577 is a deficient number, since it is larger than the sum of its proper divisors (1).

25290793906577 is an equidigital number, since it uses as much as digits as its factorization.

25290793906577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450084600, while the sum is 71.

The spelling of 25290793906577 in words is "twenty-five trillion, two hundred ninety billion, seven hundred ninety-three million, nine hundred six thousand, five hundred seventy-seven".