25365254041 has 2 divisors, whose sum is σ = 25365254042. Its totient is φ = 25365254040.

The previous prime is 25365254021. The next prime is 25365254081. The reversal of 25365254041 is 14045256352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25281000000 + 84254041 = 159000^2 + 9179^2 .

It is a cyclic number.

It is not a de Polignac number, because 25365254041 - 2¹³ = 25365245849 is a prime.

It is a super-2 number, since 2×25365254041² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25365254021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12682627020 + 12682627021.

It is an arithmetic number, because the mean of its divisors is an integer number (12682627021).

Almost surely, 2^25365254041 is an apocalyptic number.

It is an amenable number.

25365254041 is a deficient number, since it is larger than the sum of its proper divisors (1).

25365254041 is an equidigital number, since it uses as much as digits as its factorization.

25365254041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 25365254041 in words is "twenty-five billion, three hundred sixty-five million, two hundred fifty-four thousand, forty-one".