5278250777 has 2 divisors, whose sum is σ = 5278250778. Its totient is φ = 5278250776.

The previous prime is 5278250767. The next prime is 5278250807. The reversal of 5278250777 is 7770528725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4208895376 + 1069355401 = 64876^2 + 32701^2 .

It is a cyclic number.

It is not a de Polignac number, because 5278250777 - 2⁶ = 5278250713 is a prime.

It is a super-2 number, since 2×5278250777² = 55719862529802207458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5278250707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639125388 + 2639125389.

It is an arithmetic number, because the mean of its divisors is an integer number (2639125389).

Almost surely, 2^5278250777 is an apocalyptic number.

It is an amenable number.

5278250777 is a deficient number, since it is larger than the sum of its proper divisors (1).

5278250777 is an equidigital number, since it uses as much as digits as its factorization.

5278250777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920800, while the sum is 50.

The square root of 5278250777 is about 72651.5710566537. The cubic root of 5278250777 is about 1741.1252220026.

The spelling of 5278250777 in words is "five billion, two hundred seventy-eight million, two hundred fifty thousand, seven hundred seventy-seven".