54857187 has 24 divisors (see below), whose sum is σ = 98791680. Its totient is φ = 28496880.

The previous prime is 54857177. The next prime is 54857219. The reversal of 54857187 is 78175845.

It is a happy number.

54857187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54857187 - 2⁴ = 54857171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54857177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38887 + ... + 40272.

It is an arithmetic number, because the mean of its divisors is an integer number (4116320).

Almost surely, 2^54857187 is an apocalyptic number.

54857187 is a deficient number, since it is larger than the sum of its proper divisors (43934493).

54857187 is a wasteful number, since it uses less digits than its factorization.

54857187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79183 (or 79180 counting only the distinct ones).

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

The square root of 54857187 is about 7406.5637781633. The cubic root of 54857187 is about 379.9658025551.

The spelling of 54857187 in words is "fifty-four million, eight hundred fifty-seven thousand, one hundred eighty-seven".