455052421 has 2 divisors, whose sum is σ = 455052422. Its totient is φ = 455052420.

The previous prime is 455052391. The next prime is 455052443. The reversal of 455052421 is 124250554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454968900 + 83521 = 21330^2 + 289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455052421 is a prime.

It is a super-2 number, since 2×455052421² = 414145411715922482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 455052421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455052721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227526210 + 227526211.

It is an arithmetic number, because the mean of its divisors is an integer number (227526211).

Almost surely, 2^455052421 is an apocalyptic number.

It is an amenable number.

455052421 is a deficient number, since it is larger than the sum of its proper divisors (1).

455052421 is an equidigital number, since it uses as much as digits as its factorization.

455052421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 455052421 is about 21331.9577395044. The cubic root of 455052421 is about 769.1667046484.

The spelling of 455052421 in words is "four hundred fifty-five million, fifty-two thousand, four hundred twenty-one".