2545043000 has 64 divisors (see below), whose sum is σ = 5986094400. Its totient is φ = 1012771200.

The previous prime is 2545042999. The next prime is 2545043009. The reversal of 2545043000 is 3405452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545043009) 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, 190541 + ... + 203459.

It is an arithmetic number, because the mean of its divisors is an integer number (93532725).

Almost surely, 2^2545043000 is an apocalyptic number.

2545043000 is a gapful number since it is divisible by the number (20) 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 2545043000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2993047200).

2545043000 is an abundant number, since it is smaller than the sum of its proper divisors (3441051400).

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

2545043000 is a wasteful number, since it uses less digits than its factorization.

2545043000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137 (or 13123 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2545043000 is about 50448.4192021911. The cubic root of 2545043000 is about 1365.3113737283.

Adding to 2545043000 its reverse (3405452), we get a palindrome (2548448452).

The spelling of 2545043000 in words is "two billion, five hundred forty-five million, forty-three thousand".