550901 has 8 divisors (see below), whose sum is σ = 612864. Its totient is φ = 491760.

The previous prime is 550861. The next prime is 550903. The reversal of 550901 is 109055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550901 - 2¹⁰ = 549877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 281 + ... + 1086.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2⁵⁵⁰⁹⁰¹ is an apocalyptic number.

It is an amenable number.

550901 is a deficient number, since it is larger than the sum of its proper divisors (61963).

550901 is a wasteful number, since it uses less digits than its factorization.

550901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 550901 is about 742.2270542092. The cubic root of 550901 is about 81.9768425585.

Adding to 550901 its reverse (109055), we get a palindrome (659956).

The spelling of 550901 in words is "five hundred fifty thousand, nine hundred one".