55311112 has 8 divisors (see below), whose sum is σ = 103708350. Its totient is φ = 27655552.

The previous prime is 55311101. The next prime is 55311121. The reversal of 55311112 is 21111355.

It can be written as a sum of positive squares in only one way, i.e., 34644996 + 20666116 = 5886^2 + 4546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55311112² = 6118638221353088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55311112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3456937 + ... + 3456952.

Almost surely, 2^55311112 is an apocalyptic number.

It is an amenable number.

55311112 is a deficient number, since it is larger than the sum of its proper divisors (48397238).

55311112 is a wasteful number, since it uses less digits than its factorization.

55311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913895 (or 6913891 counting only the distinct ones).

The product of its digits is 150, while the sum is 19.

The square root of 55311112 is about 7437.1440755172. The cubic root of 55311112 is about 381.0109553365.

Adding to 55311112 its reverse (21111355), we get a palindrome (76422467).

The spelling of 55311112 in words is "fifty-five million, three hundred eleven thousand, one hundred twelve".