249603 has 16 divisors (see below), whose sum is σ = 364800. Its totient is φ = 151200.

The previous prime is 249593. The next prime is 249607. The reversal of 249603 is 306942.

It is not a de Polignac number, because 249603 - 2⁶ = 249539 is a prime.

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249603.

It is not an unprimeable number, because it can be changed into a prime (249607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1578 + ... + 1728.

It is an arithmetic number, because the mean of its divisors is an integer number (22800).

2²⁴⁹⁶⁰³ is an apocalyptic number.

249603 is a deficient number, since it is larger than the sum of its proper divisors (115197).

249603 is a wasteful number, since it uses less digits than its factorization.

249603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 249603 is about 499.6028422657. The cubic root of 249603 is about 62.9626889176.

The spelling of 249603 in words is "two hundred forty-nine thousand, six hundred three".