25243341340 has 48 divisors (see below), whose sum is σ = 63218115072. Its totient is φ = 8278560576.

The previous prime is 25243341311. The next prime is 25243341391. The reversal of 25243341340 is 4314334252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3916554 + ... + 3922993.

It is an arithmetic number, because the mean of its divisors is an integer number (1317044064).

Almost surely, 2^25243341340 is an apocalyptic number.

25243341340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25243341340 is an abundant number, since it is smaller than the sum of its proper divisors (37974773732).

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

25243341340 is a wasteful number, since it uses less digits than its factorization.

25243341340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7839586 (or 7839584 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 25243341340 its reverse (4314334252), we get a palindrome (29557675592).

The spelling of 25243341340 in words is "twenty-five billion, two hundred forty-three million, three hundred forty-one thousand, three hundred forty".