499777601 has 2 divisors, whose sum is σ = 499777602. Its totient is φ = 499777600.

The previous prime is 499777573. The next prime is 499777609. The reversal of 499777601 is 106777994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342250000 + 157527601 = 18500^2 + 12551^2 .

It is a cyclic number.

It is not a de Polignac number, because 499777601 - 2¹⁰ = 499776577 is a prime.

It is a super-2 number, since 2×499777601² = 499555300922630402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 499777601.

It is not a weakly prime, because it can be changed into another prime (499777609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249888800 + 249888801.

It is an arithmetic number, because the mean of its divisors is an integer number (249888801).

Almost surely, 2^499777601 is an apocalyptic number.

It is an amenable number.

499777601 is a deficient number, since it is larger than the sum of its proper divisors (1).

499777601 is an equidigital number, since it uses as much as digits as its factorization.

499777601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 50.

The square root of 499777601 is about 22355.7062290593. The cubic root of 499777601 is about 793.5828297298.

The spelling of 499777601 in words is "four hundred ninety-nine million, seven hundred seventy-seven thousand, six hundred one".