25443452312 has 16 divisors (see below), whose sum is σ = 48144148800. Its totient is φ = 12605012640.

The previous prime is 25443452291. The next prime is 25443452317. The reversal of 25443452312 is 21325434452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25443452317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14588264 + ... + 14590007.

It is an arithmetic number, because the mean of its divisors is an integer number (3009009300).

Almost surely, 2^25443452312 is an apocalyptic number.

It is an amenable number.

25443452312 is a deficient number, since it is larger than the sum of its proper divisors (22700696488).

25443452312 is a wasteful number, since it uses less digits than its factorization.

25443452312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29178386 (or 29178382 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

Adding to 25443452312 its reverse (21325434452), we get a palindrome (46768886764).

The spelling of 25443452312 in words is "twenty-five billion, four hundred forty-three million, four hundred fifty-two thousand, three hundred twelve".