2456556539 has 2 divisors, whose sum is σ = 2456556540. Its totient is φ = 2456556538.

The previous prime is 2456556527. The next prime is 2456556547. The reversal of 2456556539 is 9356556542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2456556539 - 2²⁸ = 2188121083 is a prime.

It is not a weakly prime, because it can be changed into another prime (2456556439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1228278269 + 1228278270.

It is an arithmetic number, because the mean of its divisors is an integer number (1228278270).

Almost surely, 2^2456556539 is an apocalyptic number.

2456556539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2456556539 is an equidigital number, since it uses as much as digits as its factorization.

2456556539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860000, while the sum is 50.

The square root of 2456556539 is about 49563.6614769329. The cubic root of 2456556539 is about 1349.3012458892.

The spelling of 2456556539 in words is "two billion, four hundred fifty-six million, five hundred fifty-six thousand, five hundred thirty-nine".