55146551205 has 32 divisors (see below), whose sum is σ = 90306032256. Its totient is φ = 28721274624.

The previous prime is 55146551191. The next prime is 55146551261. The reversal of 55146551205 is 50215564155.

It is not a de Polignac number, because 55146551205 - 2²⁸ = 54878115749 is a prime.

It is a super-2 number, since 2×55146551205² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 5524599 + ... + 5534571.

It is an arithmetic number, because the mean of its divisors is an integer number (2822063508).

Almost surely, 2^55146551205 is an apocalyptic number.

It is an amenable number.

55146551205 is a deficient number, since it is larger than the sum of its proper divisors (35159481051).

55146551205 is a wasteful number, since it uses less digits than its factorization.

55146551205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597.

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 55146551205 in words is "fifty-five billion, one hundred forty-six million, five hundred fifty-one thousand, two hundred five".