25325570 has 16 divisors (see below), whose sum is σ = 45654840. Its totient is φ = 10114944.

The previous prime is 25325567. The next prime is 25325579. The reversal of 25325570 is 7552352.

It can be written as a sum of positive squares in 4 ways, for example, as 5442889 + 19882681 = 2333^2 + 4459^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25325579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7046 + ... + 10014.

Almost surely, 2^25325570 is an apocalyptic number.

25325570 is a deficient number, since it is larger than the sum of its proper divisors (20329270).

25325570 is a wasteful number, since it uses less digits than its factorization.

25325570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 25325570 is about 5032.4516887895. The cubic root of 25325570 is about 293.6656000170.

The spelling of 25325570 in words is "twenty-five million, three hundred twenty-five thousand, five hundred seventy".