25208201 has 2 divisors, whose sum is σ = 25208202. Its totient is φ = 25208200.

The previous prime is 25208173. The next prime is 25208213. The reversal of 25208201 is 10280252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24255625 + 952576 = 4925^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 25208201 - 2¹⁸ = 24946057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25208291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12604100 + 12604101.

It is an arithmetic number, because the mean of its divisors is an integer number (12604101).

Almost surely, 2^25208201 is an apocalyptic number.

It is an amenable number.

25208201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25208201 is an equidigital number, since it uses as much as digits as its factorization.

25208201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 25208201 is about 5020.7769319100. The cubic root of 25208201 is about 293.2112420908.

Adding to 25208201 its reverse (10280252), we get a palindrome (35488453).

It can be divided in two parts, 25 and 208201, that multiplied together give a palindrome (5205025).

The spelling of 25208201 in words is "twenty-five million, two hundred eight thousand, two hundred one".