55555150655505 has 32 divisors (see below), whose sum is σ = 89272430208000. Its totient is φ = 29501358310400.

The previous prime is 55555150655479. The next prime is 55555150655593. The reversal of 55555150655505 is 50555605155555.

It is not a de Polignac number, because 55555150655505 - 2¹² = 55555150651409 is a prime.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 124902496 + ... + 125346494.

It is an arithmetic number, because the mean of its divisors is an integer number (2789763444000).

Almost surely, 2^{55555150655505} is an apocalyptic number.

It is an amenable number.

55555150655505 is a deficient number, since it is larger than the sum of its proper divisors (33717279552495).

55555150655505 is a wasteful number, since it uses less digits than its factorization.

55555150655505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480041.

The product of its (nonzero) digits is 58593750, while the sum is 57.

The spelling of 55555150655505 in words is "fifty-five trillion, five hundred fifty-five billion, one hundred fifty million, six hundred fifty-five thousand, five hundred five".