551456 has 24 divisors (see below), whose sum is σ = 1144080. Its totient is φ = 260928.

The previous prime is 551443. The next prime is 551461. The reversal of 551456 is 654155.

It is a d-powerful number, because it can be written as 5⁵ + 5⁵ + 4⁹ + 1 + 5⁵ + 6⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155 + ... + 1061.

It is an arithmetic number, because the mean of its divisors is an integer number (47670).

2⁵⁵¹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572040).

551456 is an abundant number, since it is smaller than the sum of its proper divisors (592624).

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

551456 is a wasteful number, since it uses less digits than its factorization.

551456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 928 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 551456 is about 742.6008349039. The cubic root of 551456 is about 82.0043622506.

The spelling of 551456 in words is "five hundred fifty-one thousand, four hundred fifty-six".