395555 has 4 divisors (see below), whose sum is σ = 474672. Its totient is φ = 316440.

The previous prime is 395543. The next prime is 395581. The reversal of 395555 is 555593.

395555 = 100² + 101² + ... + 129².

It is a happy number.

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

It is not a de Polignac number, because 395555 - 2⁶ = 395491 is a prime.

It is a Duffinian number.

395555 is a modest number, since divided by 555 gives 395 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39551 + ... + 39560.

It is an arithmetic number, because the mean of its divisors is an integer number (118668).

2³⁹⁵⁵⁵⁵ is an apocalyptic number.

395555 is a deficient number, since it is larger than the sum of its proper divisors (79117).

395555 is an equidigital number, since it uses as much as digits as its factorization.

395555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79116.

The product of its digits is 16875, while the sum is 32.

The square root of 395555 is about 628.9316338045. The cubic root of 395555 is about 73.4066873905.

The spelling of 395555 in words is "three hundred ninety-five thousand, five hundred fifty-five".