554120681 has 2 divisors, whose sum is σ = 554120682. Its totient is φ = 554120680.

The previous prime is 554120659. The next prime is 554120701. The reversal of 554120681 is 186021455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469112281 + 85008400 = 21659^2 + 9220^2 .

It is a cyclic number.

It is not a de Polignac number, because 554120681 - 2¹⁸ = 553858537 is a prime.

It is a super-2 number, since 2×554120681² = 614099458223807522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (554120641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277060340 + 277060341.

It is an arithmetic number, because the mean of its divisors is an integer number (277060341).

Almost surely, 2^554120681 is an apocalyptic number.

It is an amenable number.

554120681 is a deficient number, since it is larger than the sum of its proper divisors (1).

554120681 is an equidigital number, since it uses as much as digits as its factorization.

554120681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 554120681 is about 23539.7680744735. The cubic root of 554120681 is about 821.3623402652.

The spelling of 554120681 in words is "five hundred fifty-four million, one hundred twenty thousand, six hundred eighty-one".