550555546 has 16 divisors (see below), whose sum is σ = 859264200. Its totient is φ = 264244288.

The previous prime is 550555543. The next prime is 550555547. The reversal of 550555546 is 645555055.

It can be written as a sum of positive squares in 4 ways, for example, as 477641025 + 72914521 = 21855^2 + 8539^2 .

It is a super-2 number, since 2×550555546² = 606222818462716232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550555499 and 550555508.

It is not an unprimeable number, because it can be changed into a prime (550555543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17401 + ... + 37468.

Almost surely, 2^550555546 is an apocalyptic number.

550555546 is a deficient number, since it is larger than the sum of its proper divisors (308708654).

550555546 is a wasteful number, since it uses less digits than its factorization.

550555546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55073.

The product of its (nonzero) digits is 375000, while the sum is 40.

The square root of 550555546 is about 23463.9200902151. The cubic root of 550555546 is about 819.5970387746.

The spelling of 550555546 in words is "five hundred fifty million, five hundred fifty-five thousand, five hundred forty-six".