55511007585 has 16 divisors (see below), whose sum is σ = 96891940800. Its totient is φ = 26914427840.

The previous prime is 55511007569. The next prime is 55511007589. The reversal of 55511007585 is 58570011555.

55511007585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55511007585 - 2⁴ = 55511007569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55511007589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168215010 + ... + 168215339.

It is an arithmetic number, because the mean of its divisors is an integer number (6055746300).

Almost surely, 2^55511007585 is an apocalyptic number.

55511007585 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55511007585 is a deficient number, since it is larger than the sum of its proper divisors (41380933215).

55511007585 is a wasteful number, since it uses less digits than its factorization.

55511007585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336430368.

The product of its (nonzero) digits is 175000, while the sum is 42.

The spelling of 55511007585 in words is "fifty-five billion, five hundred eleven million, seven thousand, five hundred eighty-five".