55051165506 has 16 divisors (see below), whose sum is σ = 113078070144. Its totient is φ = 17854431984.

The previous prime is 55051165487. The next prime is 55051165513. The reversal of 55051165506 is 60556115055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123988890 + ... + 123989333.

It is an arithmetic number, because the mean of its divisors is an integer number (7067379384).

Almost surely, 2^55051165506 is an apocalyptic number.

55051165506 is an abundant number, since it is smaller than the sum of its proper divisors (58026904638).

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

55051165506 is a wasteful number, since it uses less digits than its factorization.

55051165506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247978265.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55051165506 in words is "fifty-five billion, fifty-one million, one hundred sixty-five thousand, five hundred six".