249315253 has 8 divisors (see below), whose sum is σ = 272291040. Its totient is φ = 226391280.

The previous prime is 249315229. The next prime is 249315259. The reversal of 249315253 is 352513942.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249315253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249315259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2518 + ... + 22471.

It is an arithmetic number, because the mean of its divisors is an integer number (34036380).

Almost surely, 2^249315253 is an apocalyptic number.

It is an amenable number.

249315253 is a deficient number, since it is larger than the sum of its proper divisors (22975787).

249315253 is a wasteful number, since it uses less digits than its factorization.

249315253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25907.

The product of its digits is 32400, while the sum is 34.

The square root of 249315253 is about 15789.7198518530. The cubic root of 249315253 is about 629.3848475965.

The spelling of 249315253 in words is "two hundred forty-nine million, three hundred fifteen thousand, two hundred fifty-three".