455572321 has 2 divisors, whose sum is σ = 455572322. Its totient is φ = 455572320.

The previous prime is 455572319. The next prime is 455572331. The reversal of 455572321 is 123275554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347412321 + 108160000 = 18639^2 + 10400^2 .

It is a cyclic number.

It is not a de Polignac number, because 455572321 - 2¹ = 455572319 is a prime.

It is a super-2 number, since 2×455572321² = 415092279322654082, which contains 22 as substring.

Together with 455572319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (455572331) 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, 227786160 + 227786161.

It is an arithmetic number, because the mean of its divisors is an integer number (227786161).

Almost surely, 2^455572321 is an apocalyptic number.

It is an amenable number.

455572321 is a deficient number, since it is larger than the sum of its proper divisors (1).

455572321 is an equidigital number, since it uses as much as digits as its factorization.

455572321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 34.

The square root of 455572321 is about 21344.1402028754. The cubic root of 455572321 is about 769.4595189527.

The spelling of 455572321 in words is "four hundred fifty-five million, five hundred seventy-two thousand, three hundred twenty-one".