499530900625 has 45 divisors (see below), whose sum is σ = 663491154711. Its totient is φ = 375891216000.

The previous prime is 499530900611. The next prime is 499530900641. The reversal of 499530900625 is 526009035994.

The square root of 499530900625 is 706775.

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

It can be written as a sum of positive squares in 7 ways, for example, as 243948075921 + 255582824704 = 493911^2 + 505552^2 .

It is not a de Polignac number, because 499530900625 - 2⁵ = 499530900593 is a prime.

It is a super-2 number, since 2×499530900625² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 300378544 + ... + 300380206.

Almost surely, 2^499530900625 is an apocalyptic number.

499530900625 is the 706775-th square number.

499530900625 is the 353388-th centered octagonal number.

It is an amenable number.

499530900625 is a deficient number, since it is larger than the sum of its proper divisors (163960254086).

499530900625 is an frugal number, since it uses more digits than its factorization.

499530900625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 499530900625 in words is "four hundred ninety-nine billion, five hundred thirty million, nine hundred thousand, six hundred twenty-five".