550448123 has 4 divisors (see below), whose sum is σ = 553954320. Its totient is φ = 546941928.

The previous prime is 550448077. The next prime is 550448209. The reversal of 550448123 is 321844055.

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 550448123 - 2⁸ = 550447867 is a prime.

It is a super-2 number, since 2×550448123² = 605986272228446258, which 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 550448123.

It is not an unprimeable number, because it can be changed into a prime (550448023) 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, 1752863 + ... + 1753176.

It is an arithmetic number, because the mean of its divisors is an integer number (138488580).

Almost surely, 2^550448123 is an apocalyptic number.

550448123 is a deficient number, since it is larger than the sum of its proper divisors (3506197).

550448123 is a wasteful number, since it uses less digits than its factorization.

550448123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506196.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 550448123 is about 23461.6308682922. The cubic root of 550448123 is about 819.5437294097.

The spelling of 550448123 in words is "five hundred fifty million, four hundred forty-eight thousand, one hundred twenty-three".