13425350405550 has 24 divisors (see below), whose sum is σ = 33294869006136. Its totient is φ = 3580093441440.

The previous prime is 13425350405527. The next prime is 13425350405561. The reversal of 13425350405550 is 5550405352431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44751167869 + ... + 44751168168.

It is an arithmetic number, because the mean of its divisors is an integer number (1387286208589).

Almost surely, 2^{13425350405550} is an apocalyptic number.

13425350405550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13425350405550 is an abundant number, since it is smaller than the sum of its proper divisors (19869518600586).

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

13425350405550 is a wasteful number, since it uses less digits than its factorization.

13425350405550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89502336052 (or 89502336047 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 42.

Adding to 13425350405550 its reverse (5550405352431), we get a palindrome (18975755757981).

The spelling of 13425350405550 in words is "thirteen trillion, four hundred twenty-five billion, three hundred fifty million, four hundred five thousand, five hundred fifty".