509532971 has 4 divisors (see below), whose sum is σ = 509694000. Its totient is φ = 509371944.

The previous prime is 509532901. The next prime is 509532973. The reversal of 509532971 is 179235905.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179235905 = 5 ⋅35847181.

It is a cyclic number.

It is not a de Polignac number, because 509532971 - 2¹⁰ = 509531947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509532973) 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 3 ways as a sum of consecutive naturals, for example, 75671 + ... + 82128.

It is an arithmetic number, because the mean of its divisors is an integer number (127423500).

Almost surely, 2^509532971 is an apocalyptic number.

509532971 is a deficient number, since it is larger than the sum of its proper divisors (161029).

509532971 is a wasteful number, since it uses less digits than its factorization.

509532971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161028.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 509532971 is about 22572.8370170876. The cubic root of 509532971 is about 798.7130197751.

The spelling of 509532971 in words is "five hundred nine million, five hundred thirty-two thousand, nine hundred seventy-one".