249625 has 8 divisors (see below), whose sum is σ = 311688. Its totient is φ = 199600.

The previous prime is 249607. The next prime is 249647. The reversal of 249625 is 526942.

It can be written as a sum of positive squares in 4 ways, for example, as 63001 + 186624 = 251^2 + 432^2 .

It is not a de Polignac number, because 249625 - 2⁵ = 249593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249593 and 249602.

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 7 ways as a sum of consecutive naturals, for example, 874 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (38961).

2²⁴⁹⁶²⁵ is an apocalyptic number.

249625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

249625 is a deficient number, since it is larger than the sum of its proper divisors (62063).

249625 is an equidigital number, since it uses as much as digits as its factorization.

249625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012 (or 2002 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 249625 is about 499.6248592694. The cubic root of 249625 is about 62.9645387063.

The spelling of 249625 in words is "two hundred forty-nine thousand, six hundred twenty-five".