55537168885 has 16 divisors (see below), whose sum is σ = 72707792832. Its totient is φ = 40388118400.

The previous prime is 55537168849. The next prime is 55537168927. The reversal of 55537168885 is 58886173555.

It is not a de Polignac number, because 55537168885 - 2⁹ = 55537168373 is a prime.

It is a super-2 number, since 2×55537168885² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1599105 + ... + 1633465.

It is an arithmetic number, because the mean of its divisors is an integer number (4544237052).

Almost surely, 2^55537168885 is an apocalyptic number.

55537168885 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55537168885 is a deficient number, since it is larger than the sum of its proper divisors (17170623947).

55537168885 is a wasteful number, since it uses less digits than its factorization.

55537168885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63764.

The product of its digits is 40320000, while the sum is 61.

It can be divided in two parts, 55537 and 168885, that added together give a palindrome (224422).

The spelling of 55537168885 in words is "fifty-five billion, five hundred thirty-seven million, one hundred sixty-eight thousand, eight hundred eighty-five".