551960 has 16 divisors (see below), whose sum is σ = 1242000. Its totient is φ = 220768.

The previous prime is 551959. The next prime is 551963. The reversal of 551960 is 69155.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551963) 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, 6860 + ... + 6939.

It is an arithmetic number, because the mean of its divisors is an integer number (77625).

2⁵⁵¹⁹⁶⁰ is an apocalyptic number.

It is an amenable number.

551960 is an abundant number, since it is smaller than the sum of its proper divisors (690040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551960 is a wasteful number, since it uses less digits than its factorization.

551960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13810 (or 13806 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 551960 is about 742.9401052575. The cubic root of 551960 is about 82.0293371134.

The spelling of 551960 in words is "five hundred fifty-one thousand, nine hundred sixty".