25236005225 has 12 divisors (see below), whose sum is σ = 31296347724. Its totient is φ = 20186416320.

The previous prime is 25236005209. The next prime is 25236005321. The reversal of 25236005225 is 52250063252.

It can be written as a sum of positive squares in 6 ways, for example, as 29997529 + 25206007696 = 5477^2 + 158764^2 .

It is not a de Polignac number, because 25236005225 - 2⁴ = 25236005209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25236005191 and 25236005200.

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 11 ways as a sum of consecutive naturals, for example, 173807 + ... + 284043.

It is an arithmetic number, because the mean of its divisors is an integer number (2608028977).

Almost surely, 2^25236005225 is an apocalyptic number.

25236005225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25236005225 is a deficient number, since it is larger than the sum of its proper divisors (6060342499).

25236005225 is a wasteful number, since it uses less digits than its factorization.

25236005225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119404 (or 119399 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 25236005225 its reverse (52250063252), we get a palindrome (77486068477).

The spelling of 25236005225 in words is "twenty-five billion, two hundred thirty-six million, five thousand, two hundred twenty-five".