2765219563 has 2 divisors, whose sum is σ = 2765219564. Its totient is φ = 2765219562.

The previous prime is 2765219537. The next prime is 2765219581. The reversal of 2765219563 is 3659125672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2765219563 is a prime.

It is not a weakly prime, because it can be changed into another prime (2765219593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382609781 + 1382609782.

It is an arithmetic number, because the mean of its divisors is an integer number (1382609782).

Almost surely, 2^2765219563 is an apocalyptic number.

2765219563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2765219563 is an equidigital number, since it uses as much as digits as its factorization.

2765219563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The square root of 2765219563 is about 52585.3550239988. The cubic root of 2765219563 is about 1403.5995066803.

The spelling of 2765219563 in words is "two billion, seven hundred sixty-five million, two hundred nineteen thousand, five hundred sixty-three".