4550421457 has 2 divisors, whose sum is σ = 4550421458. Its totient is φ = 4550421456.

The previous prime is 4550421451. The next prime is 4550421479. The reversal of 4550421457 is 7541240554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3638623041 + 911798416 = 60321^2 + 30196^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550421457 - 2⁷ = 4550421329 is a prime.

It is a super-3 number, since 3×4550421457³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4550421451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2275210728 + 2275210729.

It is an arithmetic number, because the mean of its divisors is an integer number (2275210729).

Almost surely, 2^4550421457 is an apocalyptic number.

It is an amenable number.

4550421457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4550421457 is an equidigital number, since it uses as much as digits as its factorization.

4550421457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112000, while the sum is 37.

The square root of 4550421457 is about 67456.8117909526. The cubic root of 4550421457 is about 1657.1069579700.

The spelling of 4550421457 in words is "four billion, five hundred fifty million, four hundred twenty-one thousand, four hundred fifty-seven".