25252750025 has 6 divisors (see below), whose sum is σ = 31313410062. Its totient is φ = 20202200000.

The previous prime is 25252750001. The next prime is 25252750031. The reversal of 25252750025 is 52005725252.

It can be written as a sum of positive squares in 3 ways, for example, as 31181056 + 25221568969 = 5584^2 + 158813^2 .

It is not a de Polignac number, because 25252750025 - 2¹⁸ = 25252487881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505054976 + ... + 505055025.

It is an arithmetic number, because the mean of its divisors is an integer number (5218901677).

Almost surely, 2^25252750025 is an apocalyptic number.

25252750025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25252750025 is a deficient number, since it is larger than the sum of its proper divisors (6060660037).

25252750025 is a wasteful number, since it uses less digits than its factorization.

25252750025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010110011 (or 1010110006 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 35.

The spelling of 25252750025 in words is "twenty-five billion, two hundred fifty-two million, seven hundred fifty thousand, twenty-five".