50550005555551 has 2 divisors, whose sum is σ = 50550005555552. Its totient is φ = 50550005555550.

The previous prime is 50550005555449. The next prime is 50550005555587. The reversal of 50550005555551 is 15555550005505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50550005555551 - 2¹¹ = 50550005553503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50550005555051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25275002777775 + 25275002777776.

It is an arithmetic number, because the mean of its divisors is an integer number (25275002777776).

Almost surely, 2^{50550005555551} is an apocalyptic number.

50550005555551 is a deficient number, since it is larger than the sum of its proper divisors (1).

50550005555551 is an equidigital number, since it uses as much as digits as its factorization.

50550005555551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1953125, while the sum is 46.

The spelling of 50550005555551 in words is "fifty trillion, five hundred fifty billion, five million, five hundred fifty-five thousand, five hundred fifty-one".