515966 has 16 divisors (see below), whose sum is σ = 864000. Its totient is φ = 229080.

The previous prime is 515951. The next prime is 515969. The reversal of 515966 is 669515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515969) by changing a digit.

515966 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 785 + ... + 1283.

It is an arithmetic number, because the mean of its divisors is an integer number (54000).

2⁵¹⁵⁹⁶⁶ is an apocalyptic number.

515966 is a deficient number, since it is larger than the sum of its proper divisors (348034).

515966 is a wasteful number, since it uses less digits than its factorization.

515966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its digits is 8100, while the sum is 32.

The square root of 515966 is about 718.3077334959. The cubic root of 515966 is about 80.2060314326.

It can be divided in two parts, 5159 and 66, that added together give a palindrome (5225).

The spelling of 515966 in words is "five hundred fifteen thousand, nine hundred sixty-six".