554305421 has 2 divisors, whose sum is σ = 554305422. Its totient is φ = 554305420.

The previous prime is 554305393. The next prime is 554305463. The reversal of 554305421 is 124503455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 554084521 + 220900 = 23539^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 554305421 - 2²² = 550111117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554305471) 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 as a sum of consecutive naturals, namely, 277152710 + 277152711.

It is an arithmetic number, because the mean of its divisors is an integer number (277152711).

Almost surely, 2^554305421 is an apocalyptic number.

It is an amenable number.

554305421 is a deficient number, since it is larger than the sum of its proper divisors (1).

554305421 is an equidigital number, since it uses as much as digits as its factorization.

554305421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 554305421 is about 23543.6917453487. The cubic root of 554305421 is about 821.4536089630.

Adding to 554305421 its reverse (124503455), we get a palindrome (678808876).

The spelling of 554305421 in words is "five hundred fifty-four million, three hundred five thousand, four hundred twenty-one".