455865257 has 2 divisors, whose sum is σ = 455865258. Its totient is φ = 455865256.

The previous prime is 455865229. The next prime is 455865281. The reversal of 455865257 is 752568554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391287961 + 64577296 = 19781^2 + 8036^2 .

It is a cyclic number.

It is not a de Polignac number, because 455865257 - 2¹⁴ = 455848873 is a prime.

It is not a weakly prime, because it can be changed into another prime (455861257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227932628 + 227932629.

It is an arithmetic number, because the mean of its divisors is an integer number (227932629).

Almost surely, 2^455865257 is an apocalyptic number.

It is an amenable number.

455865257 is a deficient number, since it is larger than the sum of its proper divisors (1).

455865257 is an equidigital number, since it uses as much as digits as its factorization.

455865257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680000, while the sum is 47.

The square root of 455865257 is about 21351.0013114139. The cubic root of 455865257 is about 769.6244061278.

The spelling of 455865257 in words is "four hundred fifty-five million, eight hundred sixty-five thousand, two hundred fifty-seven".