554139881 has 2 divisors, whose sum is σ = 554139882. Its totient is φ = 554139880.

The previous prime is 554139841. The next prime is 554139893. The reversal of 554139881 is 188931455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554131600 + 8281 = 23540^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 554139881 - 2¹⁴ = 554123497 is a prime.

It is a super-2 number, since 2×554139881² = 614142015429388322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (554139841) 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, 277069940 + 277069941.

It is an arithmetic number, because the mean of its divisors is an integer number (277069941).

Almost surely, 2^554139881 is an apocalyptic number.

It is an amenable number.

554139881 is a deficient number, since it is larger than the sum of its proper divisors (1).

554139881 is an equidigital number, since it uses as much as digits as its factorization.

554139881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 44.

The square root of 554139881 is about 23540.1758914414. The cubic root of 554139881 is about 821.3718267515.

The spelling of 554139881 in words is "five hundred fifty-four million, one hundred thirty-nine thousand, eight hundred eighty-one".