249225 has 12 divisors (see below), whose sum is σ = 412176. Its totient is φ = 132880.

The previous prime is 249217. The next prime is 249229. The reversal of 249225 is 522942.

It is not a de Polignac number, because 249225 - 2³ = 249217 is a prime.

It is a super-2 number, since 2×249225² = 124226201250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 249195 and 249204.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249225.

It is not an unprimeable number, because it can be changed into a prime (249229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1587 + ... + 1736.

It is an arithmetic number, because the mean of its divisors is an integer number (34348).

2²⁴⁹²²⁵ is an apocalyptic number.

249225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

249225 is a deficient number, since it is larger than the sum of its proper divisors (162951).

249225 is a wasteful number, since it uses less digits than its factorization.

249225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336 (or 3331 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 249225 is about 499.2243984422. The cubic root of 249225 is about 62.9308891920.

It can be divided in two parts, 249 and 225, that added together give a palindrome (474).

The spelling of 249225 in words is "two hundred forty-nine thousand, two hundred twenty-five".