499478551 has 16 divisors (see below), whose sum is σ = 587599488. Its totient is φ = 418572000.

The previous prime is 499478543. The next prime is 499478579. The reversal of 499478551 is 155874994.

It is not a de Polignac number, because 499478551 - 2³ = 499478543 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 (499478521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127776 + ... + 131626.

It is an arithmetic number, because the mean of its divisors is an integer number (36724968).

Almost surely, 2^499478551 is an apocalyptic number.

499478551 is a deficient number, since it is larger than the sum of its proper divisors (88120937).

499478551 is a wasteful number, since it uses less digits than its factorization.

499478551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782.

The product of its digits is 1814400, while the sum is 52.

The square root of 499478551 is about 22349.0167792679. The cubic root of 499478551 is about 793.4245137806.

The spelling of 499478551 in words is "four hundred ninety-nine million, four hundred seventy-eight thousand, five hundred fifty-one".