499516765225 has 9 divisors (see below), whose sum is σ = 619405170853. Its totient is φ = 399610585120.

The previous prime is 499516765219. The next prime is 499516765229. The reversal of 499516765225 is 522567615994.

It is a happy number.

The square root of 499516765225 is 706765.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 26178269209 + 473338496016 = 161797^2 + 687996^2 .

It is a de Polignac number, because none of the positive numbers 2^k-499516765225 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499516765229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3463149 + ... + 3604501.

Almost surely, 2^499516765225 is an apocalyptic number.

499516765225 is the 706765-th square number.

499516765225 is the 353383-rd centered octagonal number.

It is an amenable number.

499516765225 is a deficient number, since it is larger than the sum of its proper divisors (119888405628).

499516765225 is an frugal number, since it uses more digits than its factorization.

499516765225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282716 (or 141358 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 61.

The spelling of 499516765225 in words is "four hundred ninety-nine billion, five hundred sixteen million, seven hundred sixty-five thousand, two hundred twenty-five".