55501105506 has 64 divisors (see below), whose sum is σ = 138418606080. Its totient is φ = 14413138560.

The previous prime is 55501105433. The next prime is 55501105519. The reversal of 55501105506 is 60550110555.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3825975 + ... + 3840453.

It is an arithmetic number, because the mean of its divisors is an integer number (2162790720).

Almost surely, 2^55501105506 is an apocalyptic number.

55501105506 is an abundant number, since it is smaller than the sum of its proper divisors (82917500574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55501105506 is a wasteful number, since it uses less digits than its factorization.

55501105506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22799.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 55501105506 in words is "fifty-five billion, five hundred one million, one hundred five thousand, five hundred six".