455569997 has 2 divisors, whose sum is σ = 455569998. Its totient is φ = 455569996.

The previous prime is 455569979. The next prime is 455569999. The reversal of 455569997 is 799965554.

Together with previous prime (455569979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259177801 + 196392196 = 16099^2 + 14014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455569997 is a prime.

Together with 455569999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455569999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227784998 + 227784999.

It is an arithmetic number, because the mean of its divisors is an integer number (227784999).

Almost surely, 2^455569997 is an apocalyptic number.

It is an amenable number.

455569997 is a deficient number, since it is larger than the sum of its proper divisors (1).

455569997 is an equidigital number, since it uses as much as digits as its factorization.

455569997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309000, while the sum is 59.

The square root of 455569997 is about 21344.0857616343. The cubic root of 455569997 is about 769.4582105421.

The spelling of 455569997 in words is "four hundred fifty-five million, five hundred sixty-nine thousand, nine hundred ninety-seven".