538075509 has 8 divisors (see below), whose sum is σ = 718415712. Its totient is φ = 358226160.

The previous prime is 538075487. The next prime is 538075511. The reversal of 538075509 is 905570835.

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

It is not a de Polignac number, because 538075509 - 2¹³ = 538067317 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538075519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120147 + ... + 124544.

It is an arithmetic number, because the mean of its divisors is an integer number (89801964).

Almost surely, 2^538075509 is an apocalyptic number.

It is an amenable number.

538075509 is a deficient number, since it is larger than the sum of its proper divisors (180340203).

538075509 is a wasteful number, since it uses less digits than its factorization.

538075509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245427.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 538075509 is about 23196.4546644525. The cubic root of 538075509 is about 813.3567497327.

The spelling of 538075509 in words is "five hundred thirty-eight million, seventy-five thousand, five hundred nine".