551694 has 32 divisors (see below), whose sum is σ = 1298304. Its totient is φ = 154080.

The previous prime is 551693. The next prime is 551713. The reversal of 551694 is 496155.

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 551694.

It is not an unprimeable number, because it can be changed into a prime (551693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (40572).

2⁵⁵¹⁶⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649152).

551694 is an abundant number, since it is smaller than the sum of its proper divisors (746610).

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

551694 is a wasteful number, since it uses less digits than its factorization.

551694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its digits is 5400, while the sum is 30.

The square root of 551694 is about 742.7610652155. The cubic root of 551694 is about 82.0161578312.

The spelling of 551694 in words is "five hundred fifty-one thousand, six hundred ninety-four".