554004021 has 4 divisors (see below), whose sum is σ = 738672032. Its totient is φ = 369336012.

The previous prime is 554003999. The next prime is 554004037. The reversal of 554004021 is 120400455.

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 not a de Polignac number, because 554004021 - 2¹³ = 553995829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554004421) 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, 92334001 + ... + 92334006.

It is an arithmetic number, because the mean of its divisors is an integer number (184668008).

Almost surely, 2^554004021 is an apocalyptic number.

It is an amenable number.

554004021 is a deficient number, since it is larger than the sum of its proper divisors (184668011).

554004021 is a wasteful number, since it uses less digits than its factorization.

554004021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184668010.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 554004021 is about 23537.2900096846. The cubic root of 554004021 is about 821.3046952677.

Adding to 554004021 its reverse (120400455), we get a palindrome (674404476).

The spelling of 554004021 in words is "five hundred fifty-four million, four thousand, twenty-one".