2556143000 has 32 divisors (see below), whose sum is σ = 5981376960. Its totient is φ = 1022456800.

The previous prime is 2556142999. The next prime is 2556143003. The reversal of 2556143000 is 3416552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556143003) 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, 1277072 + ... + 1279071.

It is an arithmetic number, because the mean of its divisors is an integer number (186918030).

Almost surely, 2^2556143000 is an apocalyptic number.

2556143000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2556143000 is an abundant number, since it is smaller than the sum of its proper divisors (3425233960).

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

2556143000 is a wasteful number, since it uses less digits than its factorization.

2556143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556164 (or 2556150 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2556143000 is about 50558.3128674207. The cubic root of 2556143000 is about 1367.2933935612.

Adding to 2556143000 its reverse (3416552), we get a palindrome (2559559552).

The spelling of 2556143000 in words is "two billion, five hundred fifty-six million, one hundred forty-three thousand".