25005323201 has 2 divisors, whose sum is σ = 25005323202. Its totient is φ = 25005323200.

The previous prime is 25005323177. The next prime is 25005323209. The reversal of 25005323201 is 10232350052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23876430400 + 1128892801 = 154520^2 + 33599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25005323201 is a prime.

It is not a weakly prime, because it can be changed into another prime (25005323209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502661600 + 12502661601.

It is an arithmetic number, because the mean of its divisors is an integer number (12502661601).

Almost surely, 2^25005323201 is an apocalyptic number.

It is an amenable number.

25005323201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25005323201 is an equidigital number, since it uses as much as digits as its factorization.

25005323201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 25005323201 its reverse (10232350052), we get a palindrome (35237673253).

The spelling of 25005323201 in words is "twenty-five billion, five million, three hundred twenty-three thousand, two hundred one".