601655 has 4 divisors (see below), whose sum is σ = 721992. Its totient is φ = 481320.

The previous prime is 601651. The next prime is 601669. The reversal of 601655 is 556106.

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

It is not a de Polignac number, because 601655 - 2² = 601651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 601655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601651) by changing a digit.

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, 60161 + ... + 60170.

It is an arithmetic number, because the mean of its divisors is an integer number (180498).

2⁶⁰¹⁶⁵⁵ is an apocalyptic number.

601655 is a deficient number, since it is larger than the sum of its proper divisors (120337).

601655 is a wasteful number, since it uses less digits than its factorization.

601655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120336.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 601655 is about 775.6642314816. The cubic root of 601655 is about 84.4207442851.

The spelling of 601655 in words is "six hundred one thousand, six hundred fifty-five".