550354031123 has 4 divisors (see below), whose sum is σ = 592688956608. Its totient is φ = 508019105640.

The previous prime is 550354031111. The next prime is 550354031147. The reversal of 550354031123 is 321130453055.

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 550354031123 - 2⁴ = 550354031107 is a prime.

It is a super-2 number, since 2×550354031123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550354031123.

It is not an unprimeable number, because it can be changed into a prime (550354031923) 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, 21167462723 + ... + 21167462748.

It is an arithmetic number, because the mean of its divisors is an integer number (148172239152).

Almost surely, 2^550354031123 is an apocalyptic number.

550354031123 is a deficient number, since it is larger than the sum of its proper divisors (42334925485).

550354031123 is a wasteful number, since it uses less digits than its factorization.

550354031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42334925484.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 550354031123 its reverse (321130453055), we get a palindrome (871484484178).

The spelling of 550354031123 in words is "five hundred fifty billion, three hundred fifty-four million, thirty-one thousand, one hundred twenty-three".