550406546573 has 4 divisors (see below), whose sum is σ = 592745511708. Its totient is φ = 508067581440.

The previous prime is 550406546549. The next prime is 550406546603. The reversal of 550406546573 is 375645604055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191369501764 + 359037044809 = 437458^2 + 599197^2 .

It is a cyclic number.

It is not a de Polignac number, because 550406546573 - 2¹⁸ = 550406284429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550405546573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21169482548 + ... + 21169482573.

It is an arithmetic number, because the mean of its divisors is an integer number (148186377927).

Almost surely, 2^550406546573 is an apocalyptic number.

It is an amenable number.

550406546573 is a deficient number, since it is larger than the sum of its proper divisors (42338965135).

550406546573 is a wasteful number, since it uses less digits than its factorization.

550406546573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42338965134.

The product of its (nonzero) digits is 7560000, while the sum is 50.

The spelling of 550406546573 in words is "five hundred fifty billion, four hundred six million, five hundred forty-six thousand, five hundred seventy-three".