50505000505551 has 12 divisors (see below), whose sum is σ = 72993569583480. Its totient is φ = 33650660866320.

The previous prime is 50505000505549. The next prime is 50505000505571. The reversal of 50505000505551 is 15550500050505.

It is a happy number.

50505000505551 is a `hidden beast` number, since 5 + 0 + 5 + 0 + 50 + 0 + 0 + 50 + 5 + 551 = 666.

It is not a de Polignac number, because 50505000505551 - 2¹ = 50505000505549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505000505541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1611606021 + ... + 1611637358.

It is an arithmetic number, because the mean of its divisors is an integer number (6082797465290).

Almost surely, 2^{50505000505551} is an apocalyptic number.

50505000505551 is a deficient number, since it is larger than the sum of its proper divisors (22488569077929).

50505000505551 is a wasteful number, since it uses less digits than its factorization.

50505000505551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223245126 (or 3223245123 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 36.

The spelling of 50505000505551 in words is "fifty trillion, five hundred five billion, five hundred five thousand, five hundred fifty-one".