550550403120 has 40 divisors (see below), whose sum is σ = 1706706250416. Its totient is φ = 146813440768.

The previous prime is 550550403119. The next prime is 550550403157. The reversal of 550550403120 is 21304055055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146979767 + ... + 1146980246.

Almost surely, 2^550550403120 is an apocalyptic number.

It is an amenable number.

550550403120 is an abundant number, since it is smaller than the sum of its proper divisors (1156155847296).

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

550550403120 is a wasteful number, since it uses less digits than its factorization.

550550403120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293960029 (or 2293960023 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 550550403120 its reverse (21304055055), we get a palindrome (571854458175).

The spelling of 550550403120 in words is "five hundred fifty billion, five hundred fifty million, four hundred three thousand, one hundred twenty".