249275233 has 8 divisors (see below), whose sum is σ = 265839840. Its totient is φ = 232921920.

The previous prime is 249275209. The next prime is 249275237. The reversal of 249275233 is 332572942.

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-249275233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249275192 and 249275201.

It is not an unprimeable number, because it can be changed into a prime (249275237) 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, 50383 + ... + 55108.

It is an arithmetic number, because the mean of its divisors is an integer number (33229980).

Almost surely, 2^249275233 is an apocalyptic number.

It is an amenable number.

249275233 is a deficient number, since it is larger than the sum of its proper divisors (16564607).

249275233 is a wasteful number, since it uses less digits than its factorization.

249275233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105647.

The product of its digits is 90720, while the sum is 37.

The square root of 249275233 is about 15788.4525207507. The cubic root of 249275233 is about 629.3511695803.

The spelling of 249275233 in words is "two hundred forty-nine million, two hundred seventy-five thousand, two hundred thirty-three".