55032111 has 48 divisors (see below), whose sum is σ = 88732800. Its totient is φ = 32707584.

The previous prime is 55032097. The next prime is 55032119. The reversal of 55032111 is 11123055.

55032111 is a `hidden beast` number, since 550 + 3 + 2 + 111 = 666.

It is not a de Polignac number, because 55032111 - 2⁵ = 55032079 is a prime.

It is a super-2 number, since 2×55032111² = 6057066482232642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55032119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 350445 + ... + 350601.

It is an arithmetic number, because the mean of its divisors is an integer number (1848600).

Almost surely, 2^55032111 is an apocalyptic number.

55032111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

55032111 is a deficient number, since it is larger than the sum of its proper divisors (33700689).

55032111 is a wasteful number, since it uses less digits than its factorization.

55032111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 55032111 is about 7418.3630943760. The cubic root of 55032111 is about 380.3692417421.

Adding to 55032111 its reverse (11123055), we get a palindrome (66155166).

The spelling of 55032111 in words is "fifty-five million, thirty-two thousand, one hundred eleven".