55011711 has 16 divisors (see below), whose sum is σ = 79765344. Its totient is φ = 33583104.

The previous prime is 55011683. The next prime is 55011731. The reversal of 55011711 is 11711055.

It is a happy number.

It is not a de Polignac number, because 55011711 - 2⁵ = 55011679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55011731) by changing a digit.

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, 12690 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (4985334).

Almost surely, 2^55011711 is an apocalyptic number.

55011711 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55011711 is a deficient number, since it is larger than the sum of its proper divisors (24753633).

55011711 is a wasteful number, since it uses less digits than its factorization.

55011711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29210.

The product of its (nonzero) digits is 175, while the sum is 21.

The square root of 55011711 is about 7416.9880005296. The cubic root of 55011711 is about 380.3222359038.

Adding to 55011711 its reverse (11711055), we get a palindrome (66722766).

The spelling of 55011711 in words is "fifty-five million, eleven thousand, seven hundred eleven".