2545555963 has 2 divisors, whose sum is σ = 2545555964. Its totient is φ = 2545555962.

The previous prime is 2545555949. The next prime is 2545555973. The reversal of 2545555963 is 3695555452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2545555963 - 2⁵ = 2545555931 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545555973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272777981 + 1272777982.

It is an arithmetic number, because the mean of its divisors is an integer number (1272777982).

Almost surely, 2^2545555963 is an apocalyptic number.

2545555963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545555963 is an equidigital number, since it uses as much as digits as its factorization.

2545555963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050000, while the sum is 49.

The square root of 2545555963 is about 50453.5029804671. The cubic root of 2545555963 is about 1365.4030954491.

It can be divided in two parts, 25455 and 55963, that added together give a palindrome (81418).

The spelling of 2545555963 in words is "two billion, five hundred forty-five million, five hundred fifty-five thousand, nine hundred sixty-three".