249966933 has 8 divisors (see below), whose sum is σ = 333883488. Its totient is φ = 166347504.

The previous prime is 249966923. The next prime is 249966947. The reversal of 249966933 is 339669942.

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

It is not a de Polignac number, because 249966933 - 2⁵ = 249966901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249966923) 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, 72310 + ... + 75687.

It is an arithmetic number, because the mean of its divisors is an integer number (41735436).

Almost surely, 2^249966933 is an apocalyptic number.

It is an amenable number.

249966933 is a deficient number, since it is larger than the sum of its proper divisors (83916555).

249966933 is a wasteful number, since it uses less digits than its factorization.

249966933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148563.

The product of its digits is 1889568, while the sum is 51.

The square root of 249966933 is about 15810.3425959085. The cubic root of 249966933 is about 629.9327491832.

The spelling of 249966933 in words is "two hundred forty-nine million, nine hundred sixty-six thousand, nine hundred thirty-three".