245455 has 8 divisors (see below), whose sum is σ = 336672. Its totient is φ = 168288.

The previous prime is 245437. The next prime is 245471. The reversal of 245455 is 554542.

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 245455 - 2⁹ = 244943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3472 + ... + 3541.

It is an arithmetic number, because the mean of its divisors is an integer number (42084).

2²⁴⁵⁴⁵⁵ is an apocalyptic number.

245455 is a deficient number, since it is larger than the sum of its proper divisors (91217).

245455 is an equidigital number, since it uses as much as digits as its factorization.

245455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7025.

The product of its digits is 4000, while the sum is 25.

The square root of 245455 is about 495.4341530416. The cubic root of 245455 is about 62.6119593220.

Adding to 245455 its reverse (554542), we get a palindrome (799997).

The spelling of 245455 in words is "two hundred forty-five thousand, four hundred fifty-five".