455056681 has 2 divisors, whose sum is σ = 455056682. Its totient is φ = 455056680.

The previous prime is 455056619. The next prime is 455056687. The reversal of 455056681 is 186650554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361760400 + 93296281 = 19020^2 + 9659^2 .

It is a cyclic number.

It is not a de Polignac number, because 455056681 - 2⁹ = 455056169 is a prime.

It is a super-2 number, since 2×455056681² = 414153165845471522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (455056687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227528340 + 227528341.

It is an arithmetic number, because the mean of its divisors is an integer number (227528341).

Almost surely, 2^455056681 is an apocalyptic number.

It is an amenable number.

455056681 is a deficient number, since it is larger than the sum of its proper divisors (1).

455056681 is an equidigital number, since it uses as much as digits as its factorization.

455056681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 455056681 is about 21332.0575894591. The cubic root of 455056681 is about 769.1691048407.

The spelling of 455056681 in words is "four hundred fifty-five million, fifty-six thousand, six hundred eighty-one".