550540546403 has 4 divisors (see below), whose sum is σ = 563343814968. Its totient is φ = 537737277840.

The previous prime is 550540546397. The next prime is 550540546511. The reversal of 550540546403 is 304645045055.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 550540546403 - 2⁸ = 550540546147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550540543403) 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, 6401634218 + ... + 6401634303.

It is an arithmetic number, because the mean of its divisors is an integer number (140835953742).

Almost surely, 2^550540546403 is an apocalyptic number.

550540546403 is a deficient number, since it is larger than the sum of its proper divisors (12803268565).

550540546403 is a wasteful number, since it uses less digits than its factorization.

550540546403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12803268564.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 550540546403 in words is "five hundred fifty billion, five hundred forty million, five hundred forty-six thousand, four hundred three".