25280505241 has 2 divisors, whose sum is σ = 25280505242. Its totient is φ = 25280505240.

The previous prime is 25280505199. The next prime is 25280505247. The reversal of 25280505241 is 14250508252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25018065241 + 262440000 = 158171^2 + 16200^2 .

It is a cyclic number.

It is not a de Polignac number, because 25280505241 - 2⁷ = 25280505113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25280505197 and 25280505206.

It is not a weakly prime, because it can be changed into another prime (25280505247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12640252620 + 12640252621.

It is an arithmetic number, because the mean of its divisors is an integer number (12640252621).

Almost surely, 2^25280505241 is an apocalyptic number.

It is an amenable number.

25280505241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25280505241 is an equidigital number, since it uses as much as digits as its factorization.

25280505241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32000, while the sum is 34.

The spelling of 25280505241 in words is "twenty-five billion, two hundred eighty million, five hundred five thousand, two hundred forty-one".