25440422330 has 32 divisors (see below), whose sum is σ = 46276876800. Its totient is φ = 10068846912.

The previous prime is 25440422323. The next prime is 25440422339. The reversal of 25440422330 is 3322404452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25440422293 and 25440422302.

It is not an unprimeable number, because it can be changed into a prime (25440422339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789719 + ... + 821301.

It is an arithmetic number, because the mean of its divisors is an integer number (1446152400).

Almost surely, 2^25440422330 is an apocalyptic number.

25440422330 is a deficient number, since it is larger than the sum of its proper divisors (20836454470).

25440422330 is a wasteful number, since it uses less digits than its factorization.

25440422330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32438.

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 25440422330 its reverse (3322404452), we get a palindrome (28762826782).

The spelling of 25440422330 in words is "twenty-five billion, four hundred forty million, four hundred twenty-two thousand, three hundred thirty".