499559172025 has 9 divisors (see below), whose sum is σ = 619457755471. Its totient is φ = 399644510440.

The previous prime is 499559172001. The next prime is 499559172037. The reversal of 499559172025 is 520271955994.

It is a happy number.

The square root of 499559172025 is 706795.

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

It can be written as a sum of positive squares in only one way, i.e., 179841301929 + 319717870096 = 424077^2 + 565436^2 .

It is not a de Polignac number, because 499559172025 - 2²⁷ = 499424954297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3463296 + ... + 3604654.

Almost surely, 2^499559172025 is an apocalyptic number.

499559172025 is the 706795-th square number.

499559172025 is the 353398-th centered octagonal number.

It is an amenable number.

499559172025 is a deficient number, since it is larger than the sum of its proper divisors (119898583446).

499559172025 is an frugal number, since it uses more digits than its factorization.

499559172025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282728 (or 141364 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 58.

The spelling of 499559172025 in words is "four hundred ninety-nine billion, five hundred fifty-nine million, one hundred seventy-two thousand, twenty-five".