550251030032021 has 2 divisors, whose sum is σ = 550251030032022. Its totient is φ = 550251030032020.

The previous prime is 550251030031993. The next prime is 550251030032027. The reversal of 550251030032021 is 120230030152055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 533571238903921 + 16679791128100 = 23099161^2 + 4084090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550251030032021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550251030032027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275125515016010 + 275125515016011.

It is an arithmetic number, because the mean of its divisors is an integer number (275125515016011).

Almost surely, 2^{550251030032021} is an apocalyptic number.

It is an amenable number.

550251030032021 is a deficient number, since it is larger than the sum of its proper divisors (1).

550251030032021 is an equidigital number, since it uses as much as digits as its factorization.

550251030032021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 550251030032021 its reverse (120230030152055), we get a palindrome (670481060184076).

The spelling of 550251030032021 in words is "five hundred fifty trillion, two hundred fifty-one billion, thirty million, thirty-two thousand, twenty-one".