25244225312 has 48 divisors (see below), whose sum is σ = 51868547640. Its totient is φ = 12078968832.

The previous prime is 25244225297. The next prime is 25244225317. The reversal of 25244225312 is 21352244252.

It can be written as a sum of positive squares in 4 ways, for example, as 13187306896 + 12056918416 = 114836^2 + 109804^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (25244225317) 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, 15503 + ... + 225230.

Almost surely, 2^25244225312 is an apocalyptic number.

It is an amenable number.

25244225312 is an abundant number, since it is smaller than the sum of its proper divisors (26624322328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25244225312 is a wasteful number, since it uses less digits than its factorization.

25244225312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240885 (or 240877 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

Adding to 25244225312 its reverse (21352244252), we get a palindrome (46596469564).

The spelling of 25244225312 in words is "twenty-five billion, two hundred forty-four million, two hundred twenty-five thousand, three hundred twelve".