54857143 has 8 divisors (see below), whose sum is σ = 60095376. Its totient is φ = 49660800.

The previous prime is 54857119. The next prime is 54857171. The reversal of 54857143 is 34175845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54857143 - 2⁵ = 54857111 is a prime.

It is a super-2 number, since 2×54857143² = 6018612276244898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54857843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7696 + ... + 12997.

It is an arithmetic number, because the mean of its divisors is an integer number (7511922).

Almost surely, 2^54857143 is an apocalyptic number.

54857143 is a deficient number, since it is larger than the sum of its proper divisors (5238233).

54857143 is a wasteful number, since it uses less digits than its factorization.

54857143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20945.

The product of its digits is 67200, while the sum is 37.

The square root of 54857143 is about 7406.5608078244. The cubic root of 54857143 is about 379.9657009670.

The spelling of 54857143 in words is "fifty-four million, eight hundred fifty-seven thousand, one hundred forty-three".