509902849 has 8 divisors (see below), whose sum is σ = 528053760. Its totient is φ = 491858400.

The previous prime is 509902831. The next prime is 509902889. The reversal of 509902849 is 948209905.

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

It is not a de Polignac number, because 509902849 - 2⁵ = 509902817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 509902799 and 509902808.

It is not an unprimeable number, because it can be changed into a prime (509902889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16804 + ... + 36085.

It is an arithmetic number, because the mean of its divisors is an integer number (66006720).

It is a Proth number, since it is equal to 15561 ⋅ 2¹⁵ + 1 and 15561 < 2¹⁵.

Almost surely, 2^509902849 is an apocalyptic number.

It is an amenable number.

509902849 is a deficient number, since it is larger than the sum of its proper divisors (18150911).

509902849 is a wasteful number, since it uses less digits than its factorization.

509902849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53231.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 509902849 is about 22581.0285195338. The cubic root of 509902849 is about 798.9062391447.

The spelling of 509902849 in words is "five hundred nine million, nine hundred two thousand, eight hundred forty-nine".