550488026421 has 64 divisors (see below), whose sum is σ = 872975093760. Its totient is φ = 341623111680.

The previous prime is 550488026381. The next prime is 550488026507. The reversal of 550488026421 is 124620884055.

550488026421 is a `hidden beast` number, since 5 + 504 + 8 + 80 + 2 + 64 + 2 + 1 = 666.

It is not a de Polignac number, because 550488026421 - 2¹⁰ = 550488025397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550488026021) 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 63 ways as a sum of consecutive naturals, for example, 93985125 + ... + 93990981.

It is an arithmetic number, because the mean of its divisors is an integer number (13640235840).

Almost surely, 2^550488026421 is an apocalyptic number.

550488026421 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

550488026421 is a deficient number, since it is larger than the sum of its proper divisors (322487067339).

550488026421 is a wasteful number, since it uses less digits than its factorization.

550488026421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8091 (or 8085 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 550488026421 in words is "five hundred fifty billion, four hundred eighty-eight million, twenty-six thousand, four hundred twenty-one".