509733013 has 4 divisors (see below), whose sum is σ = 509979808. Its totient is φ = 509486220.

The previous prime is 509732987. The next prime is 509733041. The reversal of 509733013 is 310337905.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310337905 = 5 ⋅62067581.

It is a cyclic number.

It is not a de Polignac number, because 509733013 - 2¹⁷ = 509601941 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 (509733073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120273 + ... + 124438.

It is an arithmetic number, because the mean of its divisors is an integer number (127494952).

Almost surely, 2^509733013 is an apocalyptic number.

It is an amenable number.

509733013 is a deficient number, since it is larger than the sum of its proper divisors (246795).

509733013 is a wasteful number, since it uses less digits than its factorization.

509733013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246794.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 509733013 is about 22577.2676159007. The cubic root of 509733013 is about 798.8175306732.

The spelling of 509733013 in words is "five hundred nine million, seven hundred thirty-three thousand, thirteen".