551678 has 16 divisors (see below), whose sum is σ = 881280. Its totient is φ = 258456.

The previous prime is 551671. The next prime is 551689. The reversal of 551678 is 876155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551671) 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, 2993 + ... + 3171.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2⁵⁵¹⁶⁷⁸ is an apocalyptic number.

551678 is a deficient number, since it is larger than the sum of its proper divisors (329602).

551678 is a wasteful number, since it uses less digits than its factorization.

551678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its digits is 8400, while the sum is 32.

The square root of 551678 is about 742.7502945136. The cubic root of 551678 is about 82.0153649574.

The spelling of 551678 in words is "five hundred fifty-one thousand, six hundred seventy-eight".