249393853 has 16 divisors (see below), whose sum is σ = 271180800. Its totient is φ = 228666240.

The previous prime is 249393847. The next prime is 249393877. The reversal of 249393853 is 358393942.

It is a cyclic number.

It is not a de Polignac number, because 249393853 - 2⁵ = 249393821 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 (249393883) 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 15 ways as a sum of consecutive naturals, for example, 76113 + ... + 79321.

It is an arithmetic number, because the mean of its divisors is an integer number (16948800).

Almost surely, 2^249393853 is an apocalyptic number.

249393853 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

249393853 is a deficient number, since it is larger than the sum of its proper divisors (21786947).

249393853 is a wasteful number, since it uses less digits than its factorization.

249393853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372.

The product of its digits is 699840, while the sum is 46.

The square root of 249393853 is about 15792.2086169098. The cubic root of 249393853 is about 629.4509813378.

The spelling of 249393853 in words is "two hundred forty-nine million, three hundred ninety-three thousand, eight hundred fifty-three".