509053716 has 18 divisors (see below), whose sum is σ = 1286774762. Its totient is φ = 169684560.

The previous prime is 509053709. The next prime is 509053751. The reversal of 509053716 is 617350905.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 449609616 + 59444100 = 21204^2 + 7710^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 14140381 = 509053716 / (5 + 0 + 9 + 0 + 5 + 3 + 7 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7070155 + ... + 7070226.

Almost surely, 2^509053716 is an apocalyptic number.

It is an amenable number.

509053716 is an abundant number, since it is smaller than the sum of its proper divisors (777721046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

509053716 is a wasteful number, since it uses less digits than its factorization.

509053716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14140391 (or 14140386 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 509053716 is about 22562.2187738706. The cubic root of 509053716 is about 798.4625241864.

The spelling of 509053716 in words is "five hundred nine million, fifty-three thousand, seven hundred sixteen".