25525500255109 has 2 divisors, whose sum is σ = 25525500255110. Its totient is φ = 25525500255108.

The previous prime is 25525500255103. The next prime is 25525500255113. The reversal of 25525500255109 is 90155200552552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22662331687009 + 2863168568100 = 4760497^2 + 1692090^2 .

It is a cyclic number.

It is not a de Polignac number, because 25525500255109 - 2¹¹ = 25525500253061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25525500255103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762750127554 + 12762750127555.

It is an arithmetic number, because the mean of its divisors is an integer number (12762750127555).

Almost surely, 2^{25525500255109} is an apocalyptic number.

It is an amenable number.

25525500255109 is a deficient number, since it is larger than the sum of its proper divisors (1).

25525500255109 is an equidigital number, since it uses as much as digits as its factorization.

25525500255109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125000, while the sum is 46.

The spelling of 25525500255109 in words is "twenty-five trillion, five hundred twenty-five billion, five hundred million, two hundred fifty-five thousand, one hundred nine".