55888187 has 2 divisors, whose sum is σ = 55888188. Its totient is φ = 55888186.

The previous prime is 55888159. The next prime is 55888213. The reversal of 55888187 is 78188855.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55888187 - 2¹² = 55884091 is a prime.

It is a super-2 number, since 2×55888187² = 6246978892293938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55888127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27944093 + 27944094.

It is an arithmetic number, because the mean of its divisors is an integer number (27944094).

Almost surely, 2^55888187 is an apocalyptic number.

55888187 is a deficient number, since it is larger than the sum of its proper divisors (1).

55888187 is an equidigital number, since it uses as much as digits as its factorization.

55888187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 716800, while the sum is 50.

The square root of 55888187 is about 7475.8402203364. The cubic root of 55888187 is about 382.3314352591.

The spelling of 55888187 in words is "fifty-five million, eight hundred eighty-eight thousand, one hundred eighty-seven".