551996 has 6 divisors (see below), whose sum is σ = 966000. Its totient is φ = 275996.

The previous prime is 551981. The next prime is 552001. The reversal of 551996 is 699155.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551996.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68996 + ... + 69003.

It is an arithmetic number, because the mean of its divisors is an integer number (161000).

2⁵⁵¹⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

551996 is a deficient number, since it is larger than the sum of its proper divisors (414004).

551996 is a wasteful number, since it uses less digits than its factorization.

551996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138003 (or 138001 counting only the distinct ones).

The product of its digits is 12150, while the sum is 35.

The square root of 551996 is about 742.9643329259. The cubic root of 551996 is about 82.0311204503.

The spelling of 551996 in words is "five hundred fifty-one thousand, nine hundred ninety-six".