682555 has 4 divisors (see below), whose sum is σ = 819072. Its totient is φ = 546040.

The previous prime is 682547. The next prime is 682597. The reversal of 682555 is 555286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555286 = 2 ⋅277643.

It is not a de Polignac number, because 682555 - 2³ = 682547 is a prime.

It is a Duffinian number.

682555 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68251 + ... + 68260.

It is an arithmetic number, because the mean of its divisors is an integer number (204768).

2⁶⁸²⁵⁵⁵ is an apocalyptic number.

682555 is a deficient number, since it is larger than the sum of its proper divisors (136517).

682555 is a wasteful number, since it uses less digits than its factorization.

682555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136516.

The product of its digits is 12000, while the sum is 31.

The square root of 682555 is about 826.1688689366. The cubic root of 682555 is about 88.0465920628.

The spelling of 682555 in words is "six hundred eighty-two thousand, five hundred fifty-five".