455422421 has 2 divisors, whose sum is σ = 455422422. Its totient is φ = 455422420.

The previous prime is 455422391. The next prime is 455422463. The reversal of 455422421 is 124224554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372065521 + 83356900 = 19289^2 + 9130^2 .

It is a cyclic number.

It is not a de Polignac number, because 455422421 - 2¹⁴ = 455406037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455422021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227711210 + 227711211.

It is an arithmetic number, because the mean of its divisors is an integer number (227711211).

Almost surely, 2^455422421 is an apocalyptic number.

It is an amenable number.

455422421 is a deficient number, since it is larger than the sum of its proper divisors (1).

455422421 is an equidigital number, since it uses as much as digits as its factorization.

455422421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12800, while the sum is 29.

The square root of 455422421 is about 21340.6284115534. The cubic root of 455422421 is about 769.3751162286.

Adding to 455422421 its reverse (124224554), we get a palindrome (579646975).

The spelling of 455422421 in words is "four hundred fifty-five million, four hundred twenty-two thousand, four hundred twenty-one".