25535201 has 2 divisors, whose sum is σ = 25535202. Its totient is φ = 25535200.

The previous prime is 25535197. The next prime is 25535219. The reversal of 25535201 is 10253552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18696976 + 6838225 = 4324^2 + 2615^2 .

It is a cyclic number.

It is not a de Polignac number, because 25535201 - 2² = 25535197 is a prime.

It is a super-2 number, since 2×25535201² = 1304092980220802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25535261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12767600 + 12767601.

It is an arithmetic number, because the mean of its divisors is an integer number (12767601).

Almost surely, 2^25535201 is an apocalyptic number.

It is an amenable number.

25535201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25535201 is an equidigital number, since it uses as much as digits as its factorization.

25535201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 25535201 is about 5053.2366855314. The cubic root of 25535201 is about 294.4736414964.

Adding to 25535201 its reverse (10253552), we get a palindrome (35788753).

The spelling of 25535201 in words is "twenty-five million, five hundred thirty-five thousand, two hundred one".