25545201 has 16 divisors (see below), whose sum is σ = 38439360. Its totient is φ = 14947520.

The previous prime is 25545167. The next prime is 25545227. The reversal of 25545201 is 10254552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25545201 - 2¹¹ = 25543153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25545251) 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 in 15 ways as a sum of consecutive naturals, for example, 12390 + ... + 14303.

It is an arithmetic number, because the mean of its divisors is an integer number (2402460).

Almost surely, 2^25545201 is an apocalyptic number.

It is an amenable number.

25545201 is a deficient number, since it is larger than the sum of its proper divisors (12894159).

25545201 is a wasteful number, since it uses less digits than its factorization.

25545201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26736.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 25545201 is about 5054.2260535121. The cubic root of 25545201 is about 294.5120767020.

Adding to 25545201 its reverse (10254552), we get a palindrome (35799753).

The spelling of 25545201 in words is "twenty-five million, five hundred forty-five thousand, two hundred one".