55505505050505 has 16 divisors (see below), whose sum is σ = 98676453423360. Its totient is φ = 29602936026864.

The previous prime is 55505505050491. The next prime is 55505505050521. The reversal of 55505505050505 is 50505050550555.

It is not a de Polignac number, because 55505505050505 - 2¹¹ = 55505505048457 is a prime.

It is a super-2 number, since 2×55505505050505² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

55505505050505 is a modest number, since divided by 5050505 gives 555055 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205575944497 + ... + 205575944766.

It is an arithmetic number, because the mean of its divisors is an integer number (6167278338960).

Almost surely, 2^{55505505050505} is an apocalyptic number.

It is an amenable number.

55505505050505 is a deficient number, since it is larger than the sum of its proper divisors (43170948372855).

55505505050505 is a wasteful number, since it uses less digits than its factorization.

55505505050505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411151889277 (or 411151889271 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55505505050505 in words is "fifty-five trillion, five hundred five billion, five hundred five million, fifty thousand, five hundred five".