554881 has 4 divisors (see below), whose sum is σ = 556372. Its totient is φ = 553392.

The previous prime is 554849. The next prime is 554887. The reversal of 554881 is 188455.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 188455 = 5 ⋅37691.

It can be written as a sum of positive squares in 2 ways, for example, as 467856 + 87025 = 684^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 554881 - 2⁵ = 554849 is a prime.

It is a super-2 number, since 2×554881² = 615785848322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355 + ... + 1111.

It is an arithmetic number, because the mean of its divisors is an integer number (139093).

2⁵⁵⁴⁸⁸¹ is an apocalyptic number.

It is an amenable number.

554881 is a deficient number, since it is larger than the sum of its proper divisors (1491).

554881 is an equidigital number, since it uses as much as digits as its factorization.

554881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490.

The product of its digits is 6400, while the sum is 31.

The square root of 554881 is about 744.9033494353. The cubic root of 554881 is about 82.1737837279.

The spelling of 554881 in words is "five hundred fifty-four thousand, eight hundred eighty-one".