506507865 has 8 divisors (see below), whose sum is σ = 810412608. Its totient is φ = 270137520.

The previous prime is 506507857. The next prime is 506507893. The reversal of 506507865 is 568705605.

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

It is not a de Polignac number, because 506507865 - 2³ = 506507857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16883581 + ... + 16883610.

It is an arithmetic number, because the mean of its divisors is an integer number (101301576).

Almost surely, 2^506507865 is an apocalyptic number.

It is an amenable number.

506507865 is a deficient number, since it is larger than the sum of its proper divisors (303904743).

506507865 is a wasteful number, since it uses less digits than its factorization.

506507865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33767199.

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 506507865 is about 22505.7296038142. The cubic root of 506507865 is about 797.1292236472.

The spelling of 506507865 in words is "five hundred six million, five hundred seven thousand, eight hundred sixty-five".