245573 has 4 divisors (see below), whose sum is σ = 251328. Its totient is φ = 239820.

The previous prime is 245563. The next prime is 245587. The reversal of 245573 is 375542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245573 - 2⁸ = 245317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (62832).

2²⁴⁵⁵⁷³ is an apocalyptic number.

It is an amenable number.

245573 is a deficient number, since it is larger than the sum of its proper divisors (5755).

245573 is an equidigital number, since it uses as much as digits as its factorization.

245573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754.

The product of its digits is 4200, while the sum is 26.

The square root of 245573 is about 495.5532262028. The cubic root of 245573 is about 62.6219910693.

It can be divided in two parts, 245 and 573, that added together give a palindrome (818).

The spelling of 245573 in words is "two hundred forty-five thousand, five hundred seventy-three".