56143000 has 64 divisors (see below), whose sum is σ = 137142720. Its totient is φ = 21472000.

The previous prime is 56142991. The next prime is 56143001. The reversal of 56143000 is 34165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56143001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21780 + ... + 24220.

It is an arithmetic number, because the mean of its divisors is an integer number (2142855).

Almost surely, 2^56143000 is an apocalyptic number.

56143000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68571360).

56143000 is an abundant number, since it is smaller than the sum of its proper divisors (80999720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56143000 is a wasteful number, since it uses less digits than its factorization.

56143000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 56143000 is about 7492.8632711401. The cubic root of 56143000 is about 382.9116135145.

Adding to 56143000 its reverse (34165), we get a palindrome (56177165).

The spelling of 56143000 in words is "fifty-six million, one hundred forty-three thousand".