25012545 has 16 divisors (see below), whose sum is σ = 40193280. Its totient is φ = 13282304.

The previous prime is 25012543. The next prime is 25012577. The reversal of 25012545 is 54521052.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25012545 - 2¹ = 25012543 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25012543) 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, 97 + ... + 7073.

It is an arithmetic number, because the mean of its divisors is an integer number (2512080).

Almost surely, 2^25012545 is an apocalyptic number.

It is an amenable number.

25012545 is a deficient number, since it is larger than the sum of its proper divisors (15180735).

25012545 is a wasteful number, since it uses less digits than its factorization.

25012545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224.

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

The square root of 25012545 is about 5001.2543426624. The cubic root of 25012545 is about 292.4506747127.

Adding to 25012545 its reverse (54521052), we get a palindrome (79533597).

The spelling of 25012545 in words is "twenty-five million, twelve thousand, five hundred forty-five".