550404255104 has 128 divisors (see below), whose sum is σ = 1223469273600. Its totient is φ = 244494489600.

The previous prime is 550404255103. The next prime is 550404255157. The reversal of 550404255104 is 401552404055.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×550404255104² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550404255103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46912919 + ... + 46924649.

It is an arithmetic number, because the mean of its divisors is an integer number (9558353700).

Almost surely, 2^550404255104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550404255104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611734636800).

550404255104 is an abundant number, since it is smaller than the sum of its proper divisors (673065018496).

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

550404255104 is a wasteful number, since it uses less digits than its factorization.

550404255104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12512 (or 12500 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 550404255104 its reverse (401552404055), we get a palindrome (951956659159).

It can be divided in two parts, 550404 and 255104, that added together give a palindrome (805508).

The spelling of 550404255104 in words is "five hundred fifty billion, four hundred four million, two hundred fifty-five thousand, one hundred four".