554921 has 6 divisors (see below), whose sum is σ = 580650. Its totient is φ = 530288.

The previous prime is 554899. The next prime is 554923. The reversal of 554921 is 129455.

It can be written as a sum of positive squares in only one way, i.e., 541696 + 13225 = 736^2 + 115^2 .

It is not a de Polignac number, because 554921 - 2¹⁰ = 553897 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 554921.

It is not an unprimeable number, because it can be changed into a prime (554923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (96775).

2⁵⁵⁴⁹²¹ is an apocalyptic number.

It is an amenable number.

554921 is a deficient number, since it is larger than the sum of its proper divisors (25729).

554921 is a wasteful number, since it uses less digits than its factorization.

554921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1072 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 554921 is about 744.9301980723. The cubic root of 554921 is about 82.1757582488.

The spelling of 554921 in words is "five hundred fifty-four thousand, nine hundred twenty-one".