245555 has 8 divisors (see below), whose sum is σ = 299472. Its totient is φ = 193248.

The previous prime is 245533. The next prime is 245561. The reversal of 245555 is 555542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245555 - 2⁸ = 245299 is a prime.

It is a Duffinian number.

245555 is a modest number, since divided by 555 gives 245 as remainder.

It is a plaindrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (37434).

2²⁴⁵⁵⁵⁵ is an apocalyptic number.

245555 is a deficient number, since it is larger than the sum of its proper divisors (53917).

245555 is an equidigital number, since it uses as much as digits as its factorization.

245555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805.

The product of its digits is 5000, while the sum is 26.

The square root of 245555 is about 495.5350643496. The cubic root of 245555 is about 62.6204610105.

The spelling of 245555 in words is "two hundred forty-five thousand, five hundred fifty-five".