25321545241 has 2 divisors, whose sum is σ = 25321545242. Its totient is φ = 25321545240.

The previous prime is 25321545217. The next prime is 25321545251. The reversal of 25321545241 is 14254512352.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24725990025 + 595555216 = 157245^2 + 24404^2 .

It is a cyclic number.

It is not a de Polignac number, because 25321545241 - 2²⁹ = 24784674329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25321545197 and 25321545206.

It is not a weakly prime, because it can be changed into another prime (25321545211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12660772620 + 12660772621.

It is an arithmetic number, because the mean of its divisors is an integer number (12660772621).

Almost surely, 2^25321545241 is an apocalyptic number.

It is an amenable number.

25321545241 is a deficient number, since it is larger than the sum of its proper divisors (1).

25321545241 is an equidigital number, since it uses as much as digits as its factorization.

25321545241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 34.

The spelling of 25321545241 in words is "twenty-five billion, three hundred twenty-one million, five hundred forty-five thousand, two hundred forty-one".