550403454450 has 48 divisors (see below), whose sum is σ = 1387377648576. Its totient is φ = 144368116800.

The previous prime is 550403454421. The next prime is 550403454451. The reversal of 550403454450 is 54454304055.

It is a junction number, because it is equal to n+sod(n) for n = 550403454399 and 550403454408.

It is not an unprimeable number, because it can be changed into a prime (550403454451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30067542 + ... + 30085841.

It is an arithmetic number, because the mean of its divisors is an integer number (28903701012).

Almost surely, 2^550403454450 is an apocalyptic number.

550403454450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550403454450 is an abundant number, since it is smaller than the sum of its proper divisors (836974194126).

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

550403454450 is a wasteful number, since it uses less digits than its factorization.

550403454450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60153459 (or 60153454 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 39.

The spelling of 550403454450 in words is "five hundred fifty billion, four hundred three million, four hundred fifty-four thousand, four hundred fifty".