25304545 has 16 divisors (see below), whose sum is σ = 34848000. Its totient is φ = 17279424.

The previous prime is 25304527. The next prime is 25304549. The reversal of 25304545 is 54540352.

It is a cyclic number.

It is not a de Polignac number, because 25304545 - 2⁷ = 25304417 is a prime.

25304545 is a modest number, since divided by 4545 gives 2530 as remainder.

It is not an unprimeable number, because it can be changed into a prime (25304549) 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 in 15 ways as a sum of consecutive naturals, for example, 7831 + ... + 10579.

It is an arithmetic number, because the mean of its divisors is an integer number (2178000).

Almost surely, 2^25304545 is an apocalyptic number.

It is an amenable number.

25304545 is a deficient number, since it is larger than the sum of its proper divisors (9543455).

25304545 is a wasteful number, since it uses less digits than its factorization.

25304545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 25304545 is about 5030.3623129950. The cubic root of 25304545 is about 293.5843115715.

Adding to 25304545 its reverse (54540352), we get a palindrome (79844897).

The spelling of 25304545 in words is "twenty-five million, three hundred four thousand, five hundred forty-five".