245655 has 24 divisors (see below), whose sum is σ = 438048. Its totient is φ = 127296.

The previous prime is 245653. The next prime is 245671. The reversal of 245655 is 556542.

245655 is a `hidden beast` number, since 2 + 4 + 5 + 655 = 666.

It is not a de Polignac number, because 245655 - 2¹ = 245653 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2334 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (18252).

2²⁴⁵⁶⁵⁵ is an apocalyptic number.

245655 is a deficient number, since it is larger than the sum of its proper divisors (192393).

245655 is a wasteful number, since it uses less digits than its factorization.

245655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 164 counting only the distinct ones).

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

The square root of 245655 is about 495.6359551122. The cubic root of 245655 is about 62.6289603911.

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

The spelling of 245655 in words is "two hundred forty-five thousand, six hundred fifty-five".