25045452140640 has 96 divisors (see below), whose sum is σ = 78989269486176. Its totient is φ = 6670652190720.

The previous prime is 25045452140593. The next prime is 25045452140717. The reversal of 25045452140640 is 4604125454052.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×25045452140640³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25045452140592 and 25045452140601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31383037 + ... + 32171196.

It is an arithmetic number, because the mean of its divisors is an integer number (822804890481).

Almost surely, 2^{25045452140640} is an apocalyptic number.

25045452140640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25045452140640 is an abundant number, since it is smaller than the sum of its proper divisors (53943817345536).

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

25045452140640 is a wasteful number, since it uses less digits than its factorization.

25045452140640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63555072 (or 63555064 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 42.

Adding to 25045452140640 its reverse (4604125454052), we get a palindrome (29649577594692).

The spelling of 25045452140640 in words is "twenty-five trillion, forty-five billion, four hundred fifty-two million, one hundred forty thousand, six hundred forty".