457505663 has 2 divisors, whose sum is σ = 457505664. Its totient is φ = 457505662.

The previous prime is 457505639. The next prime is 457505701. The reversal of 457505663 is 366505754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457505663 - 2²⁰ = 456457087 is a prime.

It is a super-2 number, since 2×457505663² = 418622863354139138, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 457505663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457505263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228752831 + 228752832.

It is an arithmetic number, because the mean of its divisors is an integer number (228752832).

Almost surely, 2^457505663 is an apocalyptic number.

457505663 is a deficient number, since it is larger than the sum of its proper divisors (1).

457505663 is an equidigital number, since it uses as much as digits as its factorization.

457505663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 41.

The square root of 457505663 is about 21389.3820153832. The cubic root of 457505663 is about 770.5464513689.

Subtracting from 457505663 its reverse (366505754), we obtain a palindrome (90999909).

The spelling of 457505663 in words is "four hundred fifty-seven million, five hundred five thousand, six hundred sixty-three".