550400447 has 2 divisors, whose sum is σ = 550400448. Its totient is φ = 550400446.

The previous prime is 550400413. The next prime is 550400471. The reversal of 550400447 is 744004055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550400447 - 2²⁰ = 549351871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550400497) 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, 275200223 + 275200224.

It is an arithmetic number, because the mean of its divisors is an integer number (275200224).

Almost surely, 2^550400447 is an apocalyptic number.

550400447 is a deficient number, since it is larger than the sum of its proper divisors (1).

550400447 is an equidigital number, since it uses as much as digits as its factorization.

550400447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 550400447 is about 23460.6148043908. The cubic root of 550400447 is about 819.5200676613.

The spelling of 550400447 in words is "five hundred fifty million, four hundred thousand, four hundred forty-seven".