2545243043 has 32 divisors (see below), whose sum is σ = 3247340544. Its totient is φ = 1943580672.

The previous prime is 2545243037. The next prime is 2545243049. The reversal of 2545243043 is 3403425452.

It is an interprime number because it is at equal distance from previous prime (2545243037) and next prime (2545243049).

It is a cyclic number.

It is not a de Polignac number, because 2545243043 - 2⁴ = 2545243027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545243049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260696 + ... + 270282.

It is an arithmetic number, because the mean of its divisors is an integer number (101479392).

Almost surely, 2^2545243043 is an apocalyptic number.

2545243043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2545243043 is a deficient number, since it is larger than the sum of its proper divisors (702097501).

2545243043 is a wasteful number, since it uses less digits than its factorization.

2545243043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9731.

The product of its (nonzero) digits is 57600, while the sum is 32.

The square root of 2545243043 is about 50450.4018120768. The cubic root of 2545243043 is about 1365.3471444177.

Adding to 2545243043 its reverse (3403425452), we get a palindrome (5948668495).

The spelling of 2545243043 in words is "two billion, five hundred forty-five million, two hundred forty-three thousand, forty-three".