55515015606 has 32 divisors (see below), whose sum is σ = 111448798560. Its totient is φ = 18435320064.

The previous prime is 55515015587. The next prime is 55515015701. The reversal of 55515015606 is 60651051555.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2119800 + ... + 2145828.

It is an arithmetic number, because the mean of its divisors is an integer number (3482774955).

Almost surely, 2^55515015606 is an apocalyptic number.

55515015606 is an abundant number, since it is smaller than the sum of its proper divisors (55933782954).

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

55515015606 is a wasteful number, since it uses less digits than its factorization.

55515015606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27360.

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

The spelling of 55515015606 in words is "fifty-five billion, five hundred fifteen million, fifteen thousand, six hundred six".