55111167 has 24 divisors (see below), whose sum is σ = 82162080. Its totient is φ = 35570880.

The previous prime is 55111159. The next prime is 55111171. The reversal of 55111167 is 76111155.

It is a happy number.

It is not a de Polignac number, because 55111167 - 2³ = 55111159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55111167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119317 + ... + 119777.

It is an arithmetic number, because the mean of its divisors is an integer number (3423420).

Almost surely, 2^55111167 is an apocalyptic number.

55111167 is a deficient number, since it is larger than the sum of its proper divisors (27050913).

55111167 is a wasteful number, since it uses less digits than its factorization.

55111167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 860 counting only the distinct ones).

The product of its digits is 1050, while the sum is 27.

The square root of 55111167 is about 7423.6895813335. The cubic root of 55111167 is about 380.5512935329.

It can be divided in two parts, 55111 and 167, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 55111167 in words is "fifty-five million, one hundred eleven thousand, one hundred sixty-seven".