550906 has 4 divisors (see below), whose sum is σ = 826362. Its totient is φ = 275452.

The previous prime is 550903. The next prime is 550909. The reversal of 550906 is 609055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (550903) and next prime (550909).

It can be written as a sum of positive squares in only one way, i.e., 525625 + 25281 = 725^2 + 159^2 .

It is not an unprimeable number, because it can be changed into a prime (550903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137725 + ... + 137728.

2⁵⁵⁰⁹⁰⁶ is an apocalyptic number.

550906 is a deficient number, since it is larger than the sum of its proper divisors (275456).

550906 is a wasteful number, since it uses less digits than its factorization.

550906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275455.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 550906 is about 742.2304224431. The cubic root of 550906 is about 81.9770905662.

The spelling of 550906 in words is "five hundred fifty thousand, nine hundred six".