499995615 has 128 divisors (see below), whose sum is σ = 997742592. Its totient is φ = 209018880.

The previous prime is 499995593. The next prime is 499995631. The reversal of 499995615 is 516599994.

It is not a de Polignac number, because 499995615 - 2⁷ = 499995487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6849219 + ... + 6849291.

It is an arithmetic number, because the mean of its divisors is an integer number (7794864).

Almost surely, 2^499995615 is an apocalyptic number.

499995615 is a deficient number, since it is larger than the sum of its proper divisors (497746977).

499995615 is a wasteful number, since it uses less digits than its factorization.

499995615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its digits is 3936600, while the sum is 57.

The square root of 499995615 is about 22360.5817232021. The cubic root of 499995615 is about 793.6982057261.

The spelling of 499995615 in words is "four hundred ninety-nine million, nine hundred ninety-five thousand, six hundred fifteen".