550555578073 has 4 divisors (see below), whose sum is σ = 550603260900. Its totient is φ = 550507895248.

The previous prime is 550555578037. The next prime is 550555578077. The reversal of 550555578073 is 370875555055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370875555055 = 5 ⋅74175111011.

It can be written as a sum of positive squares in 2 ways, for example, as 540891115209 + 9664462864 = 735453^2 + 98308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550555578073 is a prime.

It is a super-2 number, since 2×550555578073² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550555578077) 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, 23824090 + ... + 23847187.

It is an arithmetic number, because the mean of its divisors is an integer number (137650815225).

Almost surely, 2^550555578073 is an apocalyptic number.

It is an amenable number.

550555578073 is a deficient number, since it is larger than the sum of its proper divisors (47682827).

550555578073 is a wasteful number, since it uses less digits than its factorization.

550555578073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47682826.

The product of its (nonzero) digits is 18375000, while the sum is 55.

The spelling of 550555578073 in words is "five hundred fifty billion, five hundred fifty-five million, five hundred seventy-eight thousand, seventy-three".