25352240444 has 24 divisors (see below), whose sum is σ = 45008994240. Its totient is φ = 12493106496.

The previous prime is 25352240411. The next prime is 25352240449. The reversal of 25352240444 is 44404225352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25352240449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103994 + ... + 248030.

It is an arithmetic number, because the mean of its divisors is an integer number (1875374760).

Almost surely, 2^25352240444 is an apocalyptic number.

It is an amenable number.

25352240444 is a deficient number, since it is larger than the sum of its proper divisors (19656753796).

25352240444 is a wasteful number, since it uses less digits than its factorization.

25352240444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144677 (or 144675 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 25352240444 its reverse (44404225352), we get a palindrome (69756465796).

The spelling of 25352240444 in words is "twenty-five billion, three hundred fifty-two million, two hundred forty thousand, four hundred forty-four".