499900525 has 12 divisors (see below), whose sum is σ = 636631252. Its totient is φ = 389111040.

The previous prime is 499900523. The next prime is 499900543. The reversal of 499900525 is 525009994.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 25270729 + 474629796 = 5027^2 + 21786^2 .

It is not a de Polignac number, because 499900525 - 2¹ = 499900523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499900523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269292 + ... + 271141.

Almost surely, 2^499900525 is an apocalyptic number.

It is an amenable number.

499900525 is a deficient number, since it is larger than the sum of its proper divisors (136730727).

499900525 is a wasteful number, since it uses less digits than its factorization.

499900525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540480 (or 540475 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 499900525 is about 22358.4553357337. The cubic root of 499900525 is about 793.6478869199.

The spelling of 499900525 in words is "four hundred ninety-nine million, nine hundred thousand, five hundred twenty-five".