249573 has 8 divisors (see below), whose sum is σ = 347328. Its totient is φ = 159104.

The previous prime is 249563. The next prime is 249583. The reversal of 249573 is 375942.

It is an interprime number because it is at equal distance from previous prime (249563) and next prime (249583).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249573 - 2⁵ = 249541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 249573.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249573.

It is not an unprimeable number, because it can be changed into a prime (249503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1740 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (43416).

2²⁴⁹⁵⁷³ is an apocalyptic number.

249573 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

249573 is a deficient number, since it is larger than the sum of its proper divisors (97755).

249573 is a wasteful number, since it uses less digits than its factorization.

249573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its digits is 7560, while the sum is 30.

The square root of 249573 is about 499.5728175151. The cubic root of 249573 is about 62.9601663032.

The spelling of 249573 in words is "two hundred forty-nine thousand, five hundred seventy-three".