20450014603550 has 48 divisors (see below), whose sum is σ = 44066379859872. Its totient is φ = 6915386534400.

The previous prime is 20450014603523. The next prime is 20450014603607. The reversal of 20450014603550 is 5530641005402.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 20450014603550.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 400170431 + ... + 400221530.

It is an arithmetic number, because the mean of its divisors is an integer number (918049580414).

Almost surely, 2^{20450014603550} is an apocalyptic number.

20450014603550 is an abundant number, since it is smaller than the sum of its proper divisors (23616365256322).

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

20450014603550 is a wasteful number, since it uses less digits than its factorization.

20450014603550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800392053 (or 800392048 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20450014603550 its reverse (5530641005402), we get a palindrome (25980655608952).

The spelling of 20450014603550 in words is "twenty trillion, four hundred fifty billion, fourteen million, six hundred three thousand, five hundred fifty".