245572 has 18 divisors (see below), whose sum is σ = 451178. Its totient is φ = 116928.

The previous prime is 245563. The next prime is 245587. The reversal of 245572 is 275542.

It can be written as a sum of positive squares in 3 ways, for example, as 46656 + 198916 = 216^2 + 446^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3328 + ... + 3400.

2²⁴⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

245572 is a deficient number, since it is larger than the sum of its proper divisors (205606).

245572 is a wasteful number, since it uses less digits than its factorization.

245572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 104 counting only the distinct ones).

The product of its digits is 2800, while the sum is 25.

The square root of 245572 is about 495.5522172284. The cubic root of 245572 is about 62.6219060680.

The spelling of 245572 in words is "two hundred forty-five thousand, five hundred seventy-two".