25753355161 has 2 divisors, whose sum is σ = 25753355162. Its totient is φ = 25753355160.

The previous prime is 25753355153. The next prime is 25753355189. The reversal of 25753355161 is 16155335752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22599409561 + 3153945600 = 150331^2 + 56160^2 .

It is a cyclic number.

It is not a de Polignac number, because 25753355161 - 2³ = 25753355153 is a prime.

It is not a weakly prime, because it can be changed into another prime (25753355101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12876677580 + 12876677581.

It is an arithmetic number, because the mean of its divisors is an integer number (12876677581).

Almost surely, 2^25753355161 is an apocalyptic number.

It is an amenable number.

25753355161 is a deficient number, since it is larger than the sum of its proper divisors (1).

25753355161 is an equidigital number, since it uses as much as digits as its factorization.

25753355161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472500, while the sum is 43.

The spelling of 25753355161 in words is "twenty-five billion, seven hundred fifty-three million, three hundred fifty-five thousand, one hundred sixty-one".