455220517 has 2 divisors, whose sum is σ = 455220518. Its totient is φ = 455220516.

The previous prime is 455220503. The next prime is 455220527. The reversal of 455220517 is 715022554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428034721 + 27185796 = 20689^2 + 5214^2 .

It is a cyclic number.

It is not a de Polignac number, because 455220517 - 2²³ = 446831909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455220527) 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 as a sum of consecutive naturals, namely, 227610258 + 227610259.

It is an arithmetic number, because the mean of its divisors is an integer number (227610259).

Almost surely, 2^455220517 is an apocalyptic number.

It is an amenable number.

455220517 is a deficient number, since it is larger than the sum of its proper divisors (1).

455220517 is an equidigital number, since it uses as much as digits as its factorization.

455220517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 455220517 is about 21335.8973797682. The cubic root of 455220517 is about 769.2614028439.

The spelling of 455220517 in words is "four hundred fifty-five million, two hundred twenty thousand, five hundred seventeen".