551049 has 4 divisors (see below), whose sum is σ = 734736. Its totient is φ = 367364.

The previous prime is 551039. The next prime is 551059. The reversal of 551049 is 940155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (551039) and next prime (551059).

It is a cyclic number.

It is not a de Polignac number, because 551049 - 2⁵ = 551017 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551049.

It is not an unprimeable number, because it can be changed into a prime (551039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91839 + ... + 91844.

It is an arithmetic number, because the mean of its divisors is an integer number (183684).

2⁵⁵¹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

551049 is a deficient number, since it is larger than the sum of its proper divisors (183687).

551049 is a wasteful number, since it uses less digits than its factorization.

551049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183686.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 551049 is about 742.3267474637. The cubic root of 551049 is about 81.9841829496.

The spelling of 551049 in words is "five hundred fifty-one thousand, forty-nine".