25500531241 has 2 divisors, whose sum is σ = 25500531242. Its totient is φ = 25500531240.

The previous prime is 25500531229. The next prime is 25500531281. The reversal of 25500531241 is 14213500552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25470883216 + 29648025 = 159596^2 + 5445^2 .

It is a cyclic number.

It is not a de Polignac number, because 25500531241 - 2⁵ = 25500531209 is a prime.

It is not a weakly prime, because it can be changed into another prime (25500531281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750265620 + 12750265621.

It is an arithmetic number, because the mean of its divisors is an integer number (12750265621).

Almost surely, 2^25500531241 is an apocalyptic number.

It is an amenable number.

25500531241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25500531241 is an equidigital number, since it uses as much as digits as its factorization.

25500531241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 25500531241 in words is "twenty-five billion, five hundred million, five hundred thirty-one thousand, two hundred forty-one".