499965757 has 2 divisors, whose sum is σ = 499965758. Its totient is φ = 499965756.

The previous prime is 499965749. The next prime is 499965779. The reversal of 499965757 is 757569994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 445589881 + 54375876 = 21109^2 + 7374^2 .

It is a cyclic number.

It is not a de Polignac number, because 499965757 - 2³ = 499965749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499965695 and 499965704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499965787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249982878 + 249982879.

It is an arithmetic number, because the mean of its divisors is an integer number (249982879).

Almost surely, 2^499965757 is an apocalyptic number.

It is an amenable number.

499965757 is a deficient number, since it is larger than the sum of its proper divisors (1).

499965757 is an equidigital number, since it uses as much as digits as its factorization.

499965757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21432600, while the sum is 61.

The square root of 499965757 is about 22359.9140651300. The cubic root of 499965757 is about 793.6824064457.

It can be divided in two parts, 4999 and 65757, that added together give a square (70756 = 266²).

The spelling of 499965757 in words is "four hundred ninety-nine million, nine hundred sixty-five thousand, seven hundred fifty-seven".