554139893 has 2 divisors, whose sum is σ = 554139894. Its totient is φ = 554139892.

The previous prime is 554139881. The next prime is 554139919. The reversal of 554139893 is 398931455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526335364 + 27804529 = 22942^2 + 5273^2 .

It is a cyclic number.

It is not a de Polignac number, because 554139893 - 2⁶ = 554139829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554139793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277069946 + 277069947.

It is an arithmetic number, because the mean of its divisors is an integer number (277069947).

Almost surely, 2^554139893 is an apocalyptic number.

It is an amenable number.

554139893 is a deficient number, since it is larger than the sum of its proper divisors (1).

554139893 is an equidigital number, since it uses as much as digits as its factorization.

554139893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 47.

The square root of 554139893 is about 23540.1761463248. The cubic root of 554139893 is about 821.3718326805.

The spelling of 554139893 in words is "five hundred fifty-four million, one hundred thirty-nine thousand, eight hundred ninety-three".