25231254113420 has 24 divisors (see below), whose sum is σ = 52992885297744. Its totient is φ = 10091120376896.

The previous prime is 25231254113353. The next prime is 25231254113437. The reversal of 25231254113420 is 2431145213252.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 86179487 + ... + 86471766.

It is an arithmetic number, because the mean of its divisors is an integer number (2208036887406).

Almost surely, 2^{25231254113420} is an apocalyptic number.

25231254113420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25231254113420 is an abundant number, since it is smaller than the sum of its proper divisors (27761631184324).

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

25231254113420 is a wasteful number, since it uses less digits than its factorization.

25231254113420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172658569 (or 172658567 counting only the distinct ones).

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

Adding to 25231254113420 its reverse (2431145213252), we get a palindrome (27662399326672).

The spelling of 25231254113420 in words is "twenty-five trillion, two hundred thirty-one billion, two hundred fifty-four million, one hundred thirteen thousand, four hundred twenty".