5278005787 has 2 divisors, whose sum is σ = 5278005788. Its totient is φ = 5278005786.

The previous prime is 5278005731. The next prime is 5278005823. The reversal of 5278005787 is 7875008725.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5278005787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5278005787.

It is not a weakly prime, because it can be changed into another prime (5278006787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639002893 + 2639002894.

It is an arithmetic number, because the mean of its divisors is an integer number (2639002894).

Almost surely, 2^5278005787 is an apocalyptic number.

5278005787 is a deficient number, since it is larger than the sum of its proper divisors (1).

5278005787 is an equidigital number, since it uses as much as digits as its factorization.

5278005787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1097600, while the sum is 49.

The square root of 5278005787 is about 72649.8849758208. The cubic root of 5278005787 is about 1741.0982834778.

The spelling of 5278005787 in words is "five billion, two hundred seventy-eight million, five thousand, seven hundred eighty-seven".