2555215963 has 2 divisors, whose sum is σ = 2555215964. Its totient is φ = 2555215962.

The previous prime is 2555215939. The next prime is 2555216009. The reversal of 2555215963 is 3695125552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2555215963 - 2¹³ = 2555207771 is a prime.

It is not a weakly prime, because it can be changed into another prime (2555215903) 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, 1277607981 + 1277607982.

It is an arithmetic number, because the mean of its divisors is an integer number (1277607982).

Almost surely, 2^2555215963 is an apocalyptic number.

2555215963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555215963 is an equidigital number, since it uses as much as digits as its factorization.

2555215963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405000, while the sum is 43.

The square root of 2555215963 is about 50549.1440382525. The cubic root of 2555215963 is about 1367.1280813664.

The spelling of 2555215963 in words is "two billion, five hundred fifty-five million, two hundred fifteen thousand, nine hundred sixty-three".