25552421340342 has 64 divisors (see below), whose sum is σ = 55344112125120. Its totient is φ = 7818299080704.

The previous prime is 25552421340331. The next prime is 25552421340359. The reversal of 25552421340342 is 24304312425552.

It is a junction number, because it is equal to n+sod(n) for n = 25552421340294 and 25552421340303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36034384 + ... + 36736652.

It is an arithmetic number, because the mean of its divisors is an integer number (864751751955).

Almost surely, 2^{25552421340342} is an apocalyptic number.

25552421340342 is an abundant number, since it is smaller than the sum of its proper divisors (29791690784778).

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

25552421340342 is a wasteful number, since it uses less digits than its factorization.

25552421340342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704897.

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 25552421340342 its reverse (24304312425552), we get a palindrome (49856733765894).

The spelling of 25552421340342 in words is "twenty-five trillion, five hundred fifty-two billion, four hundred twenty-one million, three hundred forty thousand, three hundred forty-two".