25140243511340 has 48 divisors (see below), whose sum is σ = 54503329434624. Its totient is φ = 9730676932800.

The previous prime is 25140243511321. The next prime is 25140243511349. The reversal of 25140243511340 is 4311534204152.

It is a self number, because there is not a number n which added to its sum of digits gives 25140243511340.

It is not an unprimeable number, because it can be changed into a prime (25140243511349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3727955 + ... + 8011125.

It is an arithmetic number, because the mean of its divisors is an integer number (1135486029888).

Almost surely, 2^{25140243511340} is an apocalyptic number.

25140243511340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25140243511340 is an abundant number, since it is smaller than the sum of its proper divisors (29363085923284).

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

25140243511340 is a wasteful number, since it uses less digits than its factorization.

25140243511340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292678 (or 4292676 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 25140243511340 its reverse (4311534204152), we get a palindrome (29451777715492).

The spelling of 25140243511340 in words is "twenty-five trillion, one hundred forty billion, two hundred forty-three million, five hundred eleven thousand, three hundred forty".