25331401225 has 96 divisors (see below), whose sum is σ = 37287613440. Its totient is φ = 16892928000.

The previous prime is 25331401189. The next prime is 25331401231. The reversal of 25331401225 is 52210413352.

It is not a de Polignac number, because 25331401225 - 2⁹ = 25331400713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25331401193 and 25331401202.

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 95 ways as a sum of consecutive naturals, for example, 22436461 + ... + 22437589.

It is an arithmetic number, because the mean of its divisors is an integer number (388412640).

Almost surely, 2^25331401225 is an apocalyptic number.

25331401225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25331401225 is a deficient number, since it is larger than the sum of its proper divisors (11956212215).

25331401225 is a wasteful number, since it uses less digits than its factorization.

25331401225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 25331401225 its reverse (52210413352), we get a palindrome (77541814577).

The spelling of 25331401225 in words is "twenty-five billion, three hundred thirty-one million, four hundred one thousand, two hundred twenty-five".