550357123 has 4 divisors (see below), whose sum is σ = 550981288. Its totient is φ = 549732960.

The previous prime is 550357117. The next prime is 550357153. The reversal of 550357123 is 321753055.

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 550357123 - 2⁵ = 550357091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550357153) 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, 310758 + ... + 312523.

It is an arithmetic number, because the mean of its divisors is an integer number (137745322).

Almost surely, 2^550357123 is an apocalyptic number.

550357123 is a deficient number, since it is larger than the sum of its proper divisors (624165).

550357123 is an equidigital number, since it uses as much as digits as its factorization.

550357123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624164.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 550357123 is about 23459.6914515089. The cubic root of 550357123 is about 819.4985646391.

It can be divided in two parts, 5503 and 57123, that added together give a palindrome (62626).

The spelling of 550357123 in words is "five hundred fifty million, three hundred fifty-seven thousand, one hundred twenty-three".