655245 has 12 divisors (see below), whose sum is σ = 1135836. Its totient is φ = 349440.

The previous prime is 655243. The next prime is 655261. The reversal of 655245 is 542556.

655245 is a `hidden beast` number, since 655 + 2 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 427716 + 227529 = 654^2 + 477^2 .

It is not a de Polignac number, because 655245 - 2¹ = 655243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7236 + ... + 7325.

It is an arithmetic number, because the mean of its divisors is an integer number (94653).

2⁶⁵⁵²⁴⁵ is an apocalyptic number.

It is an amenable number.

655245 is a deficient number, since it is larger than the sum of its proper divisors (480591).

655245 is a wasteful number, since it uses less digits than its factorization.

655245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14572 (or 14569 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 655245 is about 809.4720501660. The cubic root of 655245 is about 86.8562827368.

It can be divided in two parts, 655 and 245, that added together give a square (900 = 30²).

The spelling of 655245 in words is "six hundred fifty-five thousand, two hundred forty-five".