305066 has 4 divisors (see below), whose sum is σ = 457602. Its totient is φ = 152532.

The previous prime is 305047. The next prime is 305069. The reversal of 305066 is 660503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 229441 + 75625 = 479^2 + 275^2 .

It is not an unprimeable number, because it can be changed into a prime (305069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76265 + ... + 76268.

2³⁰⁵⁰⁶⁶ is an apocalyptic number.

305066 is a deficient number, since it is larger than the sum of its proper divisors (152536).

305066 is a wasteful number, since it uses less digits than its factorization.

305066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152535.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 305066 is about 552.3278012195. The cubic root of 305066 is about 67.3180099976.

Adding to 305066 its reverse (660503), we get a palindrome (965569).

The spelling of 305066 in words is "three hundred five thousand, sixty-six".