55392111 has 12 divisors (see below), whose sum is σ = 80120040. Its totient is φ = 36877680.

The previous prime is 55392109. The next prime is 55392121. The reversal of 55392111 is 11129355.

It is not a de Polignac number, because 55392111 - 2¹ = 55392109 is a prime.

It is a super-2 number, since 2×55392111² = 6136571922072642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55392121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3505 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (6676670).

Almost surely, 2^55392111 is an apocalyptic number.

55392111 is a deficient number, since it is larger than the sum of its proper divisors (24727929).

55392111 is a wasteful number, since it uses less digits than its factorization.

55392111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8406 (or 8403 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 55392111 is about 7442.5876548416. The cubic root of 55392111 is about 381.1968520018.

The spelling of 55392111 in words is "fifty-five million, three hundred ninety-two thousand, one hundred eleven".