4550552021400 has 576 divisors, whose sum is σ = 17919286663680. Its totient is φ = 944637926400.

The previous prime is 4550552021399. The next prime is 4550552021419. The reversal of 4550552021400 is 41202550554.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 356703822 + ... + 356716578.

It is an arithmetic number, because the mean of its divisors is an integer number (31109872680).

Almost surely, 2^{4550552021400} is an apocalyptic number.

4550552021400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4550552021400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8959643331840).

4550552021400 is an abundant number, since it is smaller than the sum of its proper divisors (13368734642280).

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

4550552021400 is a wasteful number, since it uses less digits than its factorization.

4550552021400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13904 (or 13888 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 4550552021400 its reverse (41202550554), we get a palindrome (4591754571954).

The spelling of 4550552021400 in words is "four trillion, five hundred fifty billion, five hundred fifty-two million, twenty-one thousand, four hundred".