55911766 has 8 divisors (see below), whose sum is σ = 83902464. Its totient is φ = 27944280.

The previous prime is 55911743. The next prime is 55911769. The reversal of 55911766 is 66711955.

55911766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55911766² = 6252251154477512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55911769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731 + ... + 10921.

It is an arithmetic number, because the mean of its divisors is an integer number (10487808).

Almost surely, 2^55911766 is an apocalyptic number.

55911766 is a deficient number, since it is larger than the sum of its proper divisors (27990698).

55911766 is a wasteful number, since it uses less digits than its factorization.

55911766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11606.

The product of its digits is 56700, while the sum is 40.

The square root of 55911766 is about 7477.4170674104. The cubic root of 55911766 is about 382.3851957280.

The spelling of 55911766 in words is "fifty-five million, nine hundred eleven thousand, seven hundred sixty-six".