55265660985 has 16 divisors (see below), whose sum is σ = 88559254080. Its totient is φ = 29430287040.

The previous prime is 55265660951. The next prime is 55265661001. The reversal of 55265660985 is 58906656255.

It is not a de Polignac number, because 55265660985 - 2⁶ = 55265660921 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2785546 + ... + 2805315.

It is an arithmetic number, because the mean of its divisors is an integer number (5534953380).

Almost surely, 2^55265660985 is an apocalyptic number.

It is an amenable number.

55265660985 is a deficient number, since it is larger than the sum of its proper divisors (33293593095).

55265660985 is a wasteful number, since it uses less digits than its factorization.

55265660985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5591528.

The product of its (nonzero) digits is 19440000, while the sum is 57.

The spelling of 55265660985 in words is "fifty-five billion, two hundred sixty-five million, six hundred sixty thousand, nine hundred eighty-five".