554223421 has 4 divisors (see below), whose sum is σ = 555898144. Its totient is φ = 552548700.

The previous prime is 554223419. The next prime is 554223427. The reversal of 554223421 is 124322455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 554223421 - 2¹ = 554223419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 554223421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554223427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836865 + ... + 837526.

It is an arithmetic number, because the mean of its divisors is an integer number (138974536).

Almost surely, 2^554223421 is an apocalyptic number.

It is an amenable number.

554223421 is a deficient number, since it is larger than the sum of its proper divisors (1674723).

554223421 is a wasteful number, since it uses less digits than its factorization.

554223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674722.

The product of its digits is 9600, while the sum is 28.

The square root of 554223421 is about 23541.9502378201. The cubic root of 554223421 is about 821.4131002980.

Adding to 554223421 its reverse (124322455), we get a palindrome (678545876).

The spelling of 554223421 in words is "five hundred fifty-four million, two hundred twenty-three thousand, four hundred twenty-one".