499999555 has 8 divisors (see below), whose sum is σ = 654544944. Its totient is φ = 363636000.

The previous prime is 499999547. The next prime is 499999613. The reversal of 499999555 is 555999994.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 499999555 - 2³ = 499999547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4545396 + ... + 4545505.

It is an arithmetic number, because the mean of its divisors is an integer number (81818118).

Almost surely, 2^499999555 is an apocalyptic number.

499999555 is a deficient number, since it is larger than the sum of its proper divisors (154545389).

499999555 is a wasteful number, since it uses less digits than its factorization.

499999555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090917.

The product of its digits is 29524500, while the sum is 64.

The square root of 499999555 is about 22360.6698244932. The cubic root of 499999555 is about 793.7002905195.

The spelling of 499999555 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred fifty-five".