25098728201 has 2 divisors, whose sum is σ = 25098728202. Its totient is φ = 25098728200.

The previous prime is 25098728191. The next prime is 25098728203. The reversal of 25098728201 is 10282789052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21235484176 + 3863244025 = 145724^2 + 62155^2 .

It is a cyclic number.

It is not a de Polignac number, because 25098728201 - 2¹⁴ = 25098711817 is a prime.

It is a Sophie Germain prime.

Together with 25098728203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25098728203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12549364100 + 12549364101.

It is an arithmetic number, because the mean of its divisors is an integer number (12549364101).

Almost surely, 2^25098728201 is an apocalyptic number.

It is an amenable number.

25098728201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25098728201 is an equidigital number, since it uses as much as digits as its factorization.

25098728201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 25098728201 in words is "twenty-five billion, ninety-eight million, seven hundred twenty-eight thousand, two hundred one".