6256772773 has 4 divisors (see below), whose sum is σ = 6257243788. Its totient is φ = 6256301760.

The previous prime is 6256772761. The next prime is 6256772783. The reversal of 6256772773 is 3772776526.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4880140164 + 1376632609 = 69858^2 + 37103^2 .

It is a cyclic number.

It is not a de Polignac number, because 6256772773 - 2²¹ = 6254675621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6256772773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6256772723) 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 in 3 ways as a sum of consecutive naturals, for example, 214986 + ... + 242347.

It is an arithmetic number, because the mean of its divisors is an integer number (1564310947).

Almost surely, 2^6256772773 is an apocalyptic number.

It is an amenable number.

6256772773 is a deficient number, since it is larger than the sum of its proper divisors (471015).

6256772773 is a wasteful number, since it uses less digits than its factorization.

6256772773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471014.

The product of its digits is 5186160, while the sum is 52.

The square root of 6256772773 is about 79099.7646835944. The cubic root of 6256772773 is about 1842.6808720344.

The spelling of 6256772773 in words is "six billion, two hundred fifty-six million, seven hundred seventy-two thousand, seven hundred seventy-three".