2456542043 has 2 divisors, whose sum is σ = 2456542044. Its totient is φ = 2456542042.

The previous prime is 2456542037. The next prime is 2456542079. The reversal of 2456542043 is 3402456542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2456542043 - 2⁴ = 2456542027 is a prime.

It is a super-2 number, since 2×2456542043² = 12069197618053227698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2456541994 and 2456542012.

It is not a weakly prime, because it can be changed into another prime (2456542003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228271021 + 1228271022.

It is an arithmetic number, because the mean of its divisors is an integer number (1228271022).

Almost surely, 2^2456542043 is an apocalyptic number.

2456542043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2456542043 is an equidigital number, since it uses as much as digits as its factorization.

2456542043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 35.

The square root of 2456542043 is about 49563.5152405477. The cubic root of 2456542043 is about 1349.2985918341.

Adding to 2456542043 its reverse (3402456542), we get a palindrome (5858998585).

The spelling of 2456542043 in words is "two billion, four hundred fifty-six million, five hundred forty-two thousand, forty-three".