25243100000 has 72 divisors (see below), whose sum is σ = 62117961696. Its totient is φ = 10097200000.

The previous prime is 25243099997. The next prime is 25243100011. The reversal of 25243100000 is 134252.

It is a super-2 number, since 2×25243100000² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26216 + ... + 226215.

It is an arithmetic number, because the mean of its divisors is an integer number (862749468).

Almost surely, 2^25243100000 is an apocalyptic number.

25243100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25243100000 is an abundant number, since it is smaller than the sum of its proper divisors (36874861696).

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

25243100000 is an frugal number, since it uses more digits than its factorization.

25243100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252466 (or 252438 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 25243100000 its reverse (134252), we get a palindrome (25243234252).

The spelling of 25243100000 in words is "twenty-five billion, two hundred forty-three million, one hundred thousand".