554695681 has 8 divisors (see below), whose sum is σ = 557051400. Its totient is φ = 552345600.

The previous prime is 554695651. The next prime is 554695711. The reversal of 554695681 is 186596455.

It is an interprime number because it is at equal distance from previous prime (554695651) and next prime (554695711).

It can be written as a sum of positive squares in 4 ways, for example, as 36723600 + 517972081 = 6060^2 + 22759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 554695681 - 2⁵ = 554695649 is a prime.

It is a super-2 number, since 2×554695681² = 615374597040107522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554695651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371785 + ... + 373273.

It is an arithmetic number, because the mean of its divisors is an integer number (69631425).

Almost surely, 2^554695681 is an apocalyptic number.

It is an amenable number.

554695681 is a deficient number, since it is larger than the sum of its proper divisors (2355719).

554695681 is a wasteful number, since it uses less digits than its factorization.

554695681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819.

The product of its digits is 1296000, while the sum is 49.

The square root of 554695681 is about 23551.9782820892. The cubic root of 554695681 is about 821.6463458355.

The spelling of 554695681 in words is "five hundred fifty-four million, six hundred ninety-five thousand, six hundred eighty-one".