25144324213000 has 64 divisors (see below), whose sum is σ = 58839186510000. Its totient is φ = 10057478771200.

The previous prime is 25144324212941. The next prime is 25144324213007. The reversal of 25144324213000 is 31242344152.

It can be written as a sum of positive squares in 8 ways, for example, as 826466446404 + 24317857766596 = 909102^2 + 4931314^2 .

It is not an unprimeable number, because it can be changed into a prime (25144324213007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42744876 + ... + 43329124.

Almost surely, 2^{25144324213000} is an apocalyptic number.

25144324213000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25144324213000 is an abundant number, since it is smaller than the sum of its proper divisors (33694862297000).

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

25144324213000 is a wasteful number, since it uses less digits than its factorization.

25144324213000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627307 (or 627293 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 25144324213000 its reverse (31242344152), we get a palindrome (25175566557152).

The spelling of 25144324213000 in words is "twenty-five trillion, one hundred forty-four billion, three hundred twenty-four million, two hundred thirteen thousand".