554434681 has 2 divisors, whose sum is σ = 554434682. Its totient is φ = 554434680.

The previous prime is 554434631. The next prime is 554434693. The reversal of 554434681 is 186434455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 548309056 + 6125625 = 23416^2 + 2475^2 .

It is a cyclic number.

It is not a de Polignac number, because 554434681 - 2⁷ = 554434553 is a prime.

It is a super-2 number, since 2×554434681² = 614795630991143522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (554434631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277217340 + 277217341.

It is an arithmetic number, because the mean of its divisors is an integer number (277217341).

Almost surely, 2^554434681 is an apocalyptic number.

It is an amenable number.

554434681 is a deficient number, since it is larger than the sum of its proper divisors (1).

554434681 is an equidigital number, since it uses as much as digits as its factorization.

554434681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 40.

The square root of 554434681 is about 23546.4366943281. The cubic root of 554434681 is about 821.5174563397.

The spelling of 554434681 in words is "five hundred fifty-four million, four hundred thirty-four thousand, six hundred eighty-one".