25012335225 has 12 divisors (see below), whose sum is σ = 41353727696. Its totient is φ = 13339912080.

The previous prime is 25012335223. The next prime is 25012335233. The reversal of 25012335225 is 52253321052.

It is not a de Polignac number, because 25012335225 - 2¹ = 25012335223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25012335192 and 25012335201.

It is not an unprimeable number, because it can be changed into a prime (25012335223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166748827 + ... + 166748976.

Almost surely, 2^25012335225 is an apocalyptic number.

25012335225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25012335225 is a deficient number, since it is larger than the sum of its proper divisors (16341392471).

25012335225 is a wasteful number, since it uses less digits than its factorization.

25012335225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333497816 (or 333497811 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 25012335225 its reverse (52253321052), we get a palindrome (77265656277).

The spelling of 25012335225 in words is "twenty-five billion, twelve million, three hundred thirty-five thousand, two hundred twenty-five".