25135665550153 has 2 divisors, whose sum is σ = 25135665550154. Its totient is φ = 25135665550152.

The previous prime is 25135665550063. The next prime is 25135665550267. The reversal of 25135665550153 is 35105556653152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19176271581184 + 5959393968969 = 4379072^2 + 2441187^2 .

It is a cyclic number.

It is not a de Polignac number, because 25135665550153 - 2⁹ = 25135665549641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25135665550153.

It is not a weakly prime, because it can be changed into another prime (25135665560153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567832775076 + 12567832775077.

It is an arithmetic number, because the mean of its divisors is an integer number (12567832775077).

Almost surely, 2^{25135665550153} is an apocalyptic number.

It is an amenable number.

25135665550153 is a deficient number, since it is larger than the sum of its proper divisors (1).

25135665550153 is an equidigital number, since it uses as much as digits as its factorization.

25135665550153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10125000, while the sum is 52.

The spelling of 25135665550153 in words is "twenty-five trillion, one hundred thirty-five billion, six hundred sixty-five million, five hundred fifty thousand, one hundred fifty-three".