512561 has 8 divisors (see below), whose sum is σ = 601920. Its totient is φ = 427248.

The previous prime is 512543. The next prime is 512569. The reversal of 512561 is 165215.

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

It is a cyclic number.

It is not a de Polignac number, because 512561 - 2⁶ = 512497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (75240).

2⁵¹²⁵⁶¹ is an apocalyptic number.

It is an amenable number.

512561 is a deficient number, since it is larger than the sum of its proper divisors (89359).

512561 is a wasteful number, since it uses less digits than its factorization.

512561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its digits is 300, while the sum is 20.

The square root of 512561 is about 715.9336561442. The cubic root of 512561 is about 80.0292080848.

Adding to 512561 its reverse (165215), we get a palindrome (677776).

The spelling of 512561 in words is "five hundred twelve thousand, five hundred sixty-one".