550421104897 has 2 divisors, whose sum is σ = 550421104898. Its totient is φ = 550421104896.

The previous prime is 550421104879. The next prime is 550421104907. The reversal of 550421104897 is 798401124055.

Together with previous prime (550421104879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283006976256 + 267414128641 = 531984^2 + 517121^2 .

It is a cyclic number.

It is not a de Polignac number, because 550421104897 - 2¹¹ = 550421102849 is a prime.

It is not a weakly prime, because it can be changed into another prime (550421101897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275210552448 + 275210552449.

It is an arithmetic number, because the mean of its divisors is an integer number (275210552449).

Almost surely, 2^550421104897 is an apocalyptic number.

It is an amenable number.

550421104897 is a deficient number, since it is larger than the sum of its proper divisors (1).

550421104897 is an equidigital number, since it uses as much as digits as its factorization.

550421104897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 550421104897 in words is "five hundred fifty billion, four hundred twenty-one million, one hundred four thousand, eight hundred ninety-seven".