55608111 has 12 divisors (see below), whose sum is σ = 86501688. Its totient is φ = 34220304.

The previous prime is 55608107. The next prime is 55608121. The reversal of 55608111 is 11180655.

55608111 is a `hidden beast` number, since 55 + 608 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 55608111 - 2² = 55608107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55608101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237525 + ... + 237758.

It is an arithmetic number, because the mean of its divisors is an integer number (7208474).

Almost surely, 2^55608111 is an apocalyptic number.

55608111 is a deficient number, since it is larger than the sum of its proper divisors (30893577).

55608111 is a wasteful number, since it uses less digits than its factorization.

55608111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475302 (or 475299 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 55608111 is about 7457.0846179992. The cubic root of 55608111 is about 381.6916981945.

Adding to 55608111 its reverse (11180655), we get a palindrome (66788766).

The spelling of 55608111 in words is "fifty-five million, six hundred eight thousand, one hundred eleven".