507385 has 4 divisors (see below), whose sum is σ = 608868. Its totient is φ = 405904.

The previous prime is 507383. The next prime is 507401. The reversal of 507385 is 583705.

507385 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583705 = 5 ⋅116741.

It can be written as a sum of positive squares in 2 ways, for example, as 197136 + 310249 = 444^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 507385 - 2¹ = 507383 is a prime.

It is a Duffinian number.

507385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (507383) 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, 50734 + ... + 50743.

It is an arithmetic number, because the mean of its divisors is an integer number (152217).

2⁵⁰⁷³⁸⁵ is an apocalyptic number.

It is an amenable number.

507385 is a deficient number, since it is larger than the sum of its proper divisors (101483).

507385 is a wasteful number, since it uses less digits than its factorization.

507385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101482.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 507385 is about 712.3096236890. The cubic root of 507385 is about 79.7589095892.

The spelling of 507385 in words is "five hundred seven thousand, three hundred eighty-five".