55727311011 has 32 divisors (see below), whose sum is σ = 80111328000. Its totient is φ = 34343906688.

The previous prime is 55727311009. The next prime is 55727311019. The reversal of 55727311011 is 11011372755.

It is not a de Polignac number, because 55727311011 - 2¹ = 55727311009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55727311019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2609485 + ... + 2630753.

It is an arithmetic number, because the mean of its divisors is an integer number (2503479000).

Almost surely, 2^55727311011 is an apocalyptic number.

55727311011 is a deficient number, since it is larger than the sum of its proper divisors (24384016989).

55727311011 is a wasteful number, since it uses less digits than its factorization.

55727311011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22403.

The product of its (nonzero) digits is 7350, while the sum is 33.

Adding to 55727311011 its reverse (11011372755), we get a palindrome (66738683766).

The spelling of 55727311011 in words is "fifty-five billion, seven hundred twenty-seven million, three hundred eleven thousand, eleven".