355566 has 16 divisors (see below), whose sum is σ = 748800. Its totient is φ = 112248.

The previous prime is 355559. The next prime is 355571. The reversal of 355566 is 665553.

It is a Curzon number.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is an unprimeable number.

355566 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, 1446 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (46800).

2³⁵⁵⁵⁶⁶ is an apocalyptic number.

355566 is an abundant number, since it is smaller than the sum of its proper divisors (393234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

355566 is a wasteful number, since it uses less digits than its factorization.

355566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143.

The product of its digits is 13500, while the sum is 30.

The square root of 355566 is about 596.2935518685. The cubic root of 355566 is about 70.8445982853.

The spelling of 355566 in words is "three hundred fifty-five thousand, five hundred sixty-six".