25130845 has 16 divisors (see below), whose sum is σ = 32134320. Its totient is φ = 18801664.

The previous prime is 25130843. The next prime is 25130891. The reversal of 25130845 is 54803152.

It can be written as a sum of positive squares in 8 ways, for example, as 549081 + 24581764 = 741^2 + 4958^2 .

It is a cyclic number.

It is not a de Polignac number, because 25130845 - 2¹ = 25130843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13851 + ... + 15559.

It is an arithmetic number, because the mean of its divisors is an integer number (2008395).

Almost surely, 2^25130845 is an apocalyptic number.

It is an amenable number.

25130845 is a deficient number, since it is larger than the sum of its proper divisors (7003475).

25130845 is a wasteful number, since it uses less digits than its factorization.

25130845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25130845 is about 5013.0674242424. The cubic root of 25130845 is about 292.9110105720.

Adding to 25130845 its reverse (54803152), we get a palindrome (79933997).

The spelling of 25130845 in words is "twenty-five million, one hundred thirty thousand, eight hundred forty-five".