55885111 has 2 divisors, whose sum is σ = 55885112. Its totient is φ = 55885110.

The previous prime is 55885097. The next prime is 55885127. The reversal of 55885111 is 11158855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55885111 - 2²¹ = 53787959 is a prime.

It is equal to p_3331897 and since 55885111 and 3331897 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55888111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27942555 + 27942556.

It is an arithmetic number, because the mean of its divisors is an integer number (27942556).

Almost surely, 2^55885111 is an apocalyptic number.

55885111 is a deficient number, since it is larger than the sum of its proper divisors (1).

55885111 is an equidigital number, since it uses as much as digits as its factorization.

55885111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8000, while the sum is 34.

The square root of 55885111 is about 7475.6344881221. The cubic root of 55885111 is about 382.3244208187.

The spelling of 55885111 in words is "fifty-five million, eight hundred eighty-five thousand, one hundred eleven".