2554643243 has 2 divisors, whose sum is σ = 2554643244. Its totient is φ = 2554643242.

The previous prime is 2554643239. The next prime is 2554643251. The reversal of 2554643243 is 3423464552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2554643243 - 2² = 2554643239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2554643197 and 2554643206.

It is not a weakly prime, because it can be changed into another prime (2554643213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277321621 + 1277321622.

It is an arithmetic number, because the mean of its divisors is an integer number (1277321622).

Almost surely, 2^2554643243 is an apocalyptic number.

2554643243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2554643243 is an equidigital number, since it uses as much as digits as its factorization.

2554643243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 38.

The square root of 2554643243 is about 50543.4787386068. The cubic root of 2554643243 is about 1367.0259321271.

The spelling of 2554643243 in words is "two billion, five hundred fifty-four million, six hundred forty-three thousand, two hundred forty-three".