55511005060491 has 16 divisors (see below), whose sum is σ = 79567846003200. Its totient is φ = 34313633585568.

The previous prime is 55511005060429. The next prime is 55511005060531. The reversal of 55511005060491 is 19406050011555.

It is a happy number.

It is not a de Polignac number, because 55511005060491 - 2²⁶ = 55510937951627 is a prime.

It is a super-2 number, since 2×55511005060491² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55511005020491) 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, 10360393936 + ... + 10360399293.

It is an arithmetic number, because the mean of its divisors is an integer number (4972990375200).

Almost surely, 2^{55511005060491} is an apocalyptic number.

55511005060491 is a deficient number, since it is larger than the sum of its proper divisors (24056840942709).

55511005060491 is a wasteful number, since it uses less digits than its factorization.

55511005060491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20720793298.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 55511005060491 in words is "fifty-five trillion, five hundred eleven billion, five million, sixty thousand, four hundred ninety-one".