25243011514240 has 128 divisors (see below), whose sum is σ = 65903952784320. Its totient is φ = 9189221744640.

The previous prime is 25243011514211. The next prime is 25243011514247. The reversal of 25243011514240 is 4241511034252.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 25243011514196 and 25243011514205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25243011514247) 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, 20775589 + ... + 21957028.

Almost surely, 2^{25243011514240} is an apocalyptic number.

25243011514240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25243011514240 is an abundant number, since it is smaller than the sum of its proper divisors (40660941270080).

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

25243011514240 is a wasteful number, since it uses less digits than its factorization.

25243011514240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42732720 (or 42732708 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 25243011514240 its reverse (4241511034252), we get a palindrome (29484522548492).

The spelling of 25243011514240 in words is "twenty-five trillion, two hundred forty-three billion, eleven million, five hundred fourteen thousand, two hundred forty".