55847187 has 18 divisors (see below), whose sum is σ = 88670036. Its totient is φ = 33846120.

The previous prime is 55847177. The next prime is 55847189. The reversal of 55847187 is 78174855.

It is a happy number.

It is not a de Polignac number, because 55847187 - 2⁶ = 55847123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55847189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24553 + ... + 26730.

Almost surely, 2^55847187 is an apocalyptic number.

55847187 is a deficient number, since it is larger than the sum of its proper divisors (32822849).

55847187 is a wasteful number, since it uses less digits than its factorization.

55847187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51311 (or 51297 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 55847187 is about 7473.0975505476. The cubic root of 55847187 is about 382.2379186355.

The spelling of 55847187 in words is "fifty-five million, eight hundred forty-seven thousand, one hundred eighty-seven".