25321201 has 2 divisors, whose sum is σ = 25321202. Its totient is φ = 25321200.

The previous prime is 25321187. The next prime is 25321237. The reversal of 25321201 is 10212352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21902400 + 3418801 = 4680^2 + 1849^2 .

It is a cyclic number.

It is not a de Polignac number, because 25321201 - 2⁹ = 25320689 is a prime.

It is not a weakly prime, because it can be changed into another prime (25321271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12660600 + 12660601.

It is an arithmetic number, because the mean of its divisors is an integer number (12660601).

Almost surely, 2^25321201 is an apocalyptic number.

It is an amenable number.

25321201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25321201 is an equidigital number, since it uses as much as digits as its factorization.

25321201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 25321201 is about 5032.0175874096. The cubic root of 25321201 is about 293.6487119628.

Adding to 25321201 its reverse (10212352), we get a palindrome (35533553).

The spelling of 25321201 in words is "twenty-five million, three hundred twenty-one thousand, two hundred one".