554244521 has 4 divisors (see below), whose sum is σ = 555240132. Its totient is φ = 553248912.

The previous prime is 554244511. The next prime is 554244533. The reversal of 554244521 is 125442455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125442455 = 5 ⋅25088491.

It can be written as a sum of positive squares in 2 ways, for example, as 54096025 + 500148496 = 7355^2 + 22364^2 .

It is a cyclic number.

It is not a de Polignac number, because 554244521 - 2²² = 550050217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (554244511) 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 3 ways as a sum of consecutive naturals, for example, 496970 + ... + 498083.

It is an arithmetic number, because the mean of its divisors is an integer number (138810033).

Almost surely, 2^554244521 is an apocalyptic number.

It is an amenable number.

554244521 is a deficient number, since it is larger than the sum of its proper divisors (995611).

554244521 is an equidigital number, since it uses as much as digits as its factorization.

554244521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995610.

The product of its digits is 32000, while the sum is 32.

The square root of 554244521 is about 23542.3983697498. The cubic root of 554244521 is about 821.4235242509.

Adding to 554244521 its reverse (125442455), we get a palindrome (679686976).

The spelling of 554244521 in words is "five hundred fifty-four million, two hundred forty-four thousand, five hundred twenty-one".