55041187 has 2 divisors, whose sum is σ = 55041188. Its totient is φ = 55041186.

The previous prime is 55041179. The next prime is 55041191. The reversal of 55041187 is 78114055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55041187 - 2³ = 55041179 is a prime.

It is not a weakly prime, because it can be changed into another prime (55041137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27520593 + 27520594.

It is an arithmetic number, because the mean of its divisors is an integer number (27520594).

Almost surely, 2^55041187 is an apocalyptic number.

55041187 is a deficient number, since it is larger than the sum of its proper divisors (1).

55041187 is an equidigital number, since it uses as much as digits as its factorization.

55041187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 55041187 is about 7418.9747944039. The cubic root of 55041187 is about 380.3901509980.

The spelling of 55041187 in words is "fifty-five million, forty-one thousand, one hundred eighty-seven".