550359634421 has 2 divisors, whose sum is σ = 550359634422. Its totient is φ = 550359634420.

The previous prime is 550359634387. The next prime is 550359634453. The reversal of 550359634421 is 124436953055.

550359634421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461563978225 + 88795656196 = 679385^2 + 297986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550359634421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550359639421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275179817210 + 275179817211.

It is an arithmetic number, because the mean of its divisors is an integer number (275179817211).

Almost surely, 2^550359634421 is an apocalyptic number.

It is an amenable number.

550359634421 is a deficient number, since it is larger than the sum of its proper divisors (1).

550359634421 is an equidigital number, since it uses as much as digits as its factorization.

550359634421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 550359634421 in words is "five hundred fifty billion, three hundred fifty-nine million, six hundred thirty-four thousand, four hundred twenty-one".