249802853 has 8 divisors (see below), whose sum is σ = 251116800. Its totient is φ = 248493168.

The previous prime is 249802843. The next prime is 249802907. The reversal of 249802853 is 358208942.

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 249802853 - 2⁴ = 249802837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249802853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249802843) 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, 202643 + ... + 203871.

It is an arithmetic number, because the mean of its divisors is an integer number (31389600).

Almost surely, 2^249802853 is an apocalyptic number.

It is an amenable number.

249802853 is a deficient number, since it is larger than the sum of its proper divisors (1313947).

249802853 is a wasteful number, since it uses less digits than its factorization.

249802853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 249802853 is about 15805.1527357378. The cubic root of 249802853 is about 629.7948882966.

The spelling of 249802853 in words is "two hundred forty-nine million, eight hundred two thousand, eight hundred fifty-three".