499805655 has 8 divisors (see below), whose sum is σ = 799689072. Its totient is φ = 266563008.

The previous prime is 499805651. The next prime is 499805681. The reversal of 499805655 is 556508994.

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

It is not a de Polignac number, because 499805655 - 2² = 499805651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499805598 and 499805607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499805651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16660174 + ... + 16660203.

It is an arithmetic number, because the mean of its divisors is an integer number (99961134).

Almost surely, 2^499805655 is an apocalyptic number.

499805655 is a deficient number, since it is larger than the sum of its proper divisors (299883417).

499805655 is a wasteful number, since it uses less digits than its factorization.

499805655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33320385.

The product of its (nonzero) digits is 1944000, while the sum is 51.

The square root of 499805655 is about 22356.3336663237. Note that the first 3 decimals coincide. The cubic root of 499805655 is about 793.5976781718.

The spelling of 499805655 in words is "four hundred ninety-nine million, eight hundred five thousand, six hundred fifty-five".