55050105509 has 12 divisors (see below), whose sum is σ = 64074384000. Its totient is φ = 47158905528.

The previous prime is 55050105499. The next prime is 55050105533. The reversal of 55050105509 is 90550105055.

It is not a de Polignac number, because 55050105509 - 2¹⁶ = 55050039973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050105599) 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, 233159 + ... + 405540.

It is an arithmetic number, because the mean of its divisors is an integer number (5339532000).

Almost surely, 2^55050105509 is an apocalyptic number.

It is an amenable number.

55050105509 is a deficient number, since it is larger than the sum of its proper divisors (9024278491).

55050105509 is a wasteful number, since it uses less digits than its factorization.

55050105509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640472 (or 640465 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 35.

The spelling of 55050105509 in words is "fifty-five billion, fifty million, one hundred five thousand, five hundred nine".