25472745 has 16 divisors (see below), whose sum is σ = 45285120. Its totient is φ = 13585392.

The previous prime is 25472743. The next prime is 25472773. The reversal of 25472745 is 54727452.

It is a happy number.

It is not a de Polignac number, because 25472745 - 2¹ = 25472743 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25472743) 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, 94209 + ... + 94478.

It is an arithmetic number, because the mean of its divisors is an integer number (2830320).

Almost surely, 2^25472745 is an apocalyptic number.

It is an amenable number.

25472745 is a deficient number, since it is larger than the sum of its proper divisors (19812375).

25472745 is a wasteful number, since it uses less digits than its factorization.

25472745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188701 (or 188695 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 25472745 is about 5047.0531005727. The cubic root of 25472745 is about 294.2333632398.

The spelling of 25472745 in words is "twenty-five million, four hundred seventy-two thousand, seven hundred forty-five".