249966089 has 8 divisors (see below), whose sum is σ = 254678400. Its totient is φ = 245288736.

The previous prime is 249966083. The next prime is 249966091. The reversal of 249966089 is 980669942.

249966089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-249966089 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 249966089.

It is not an unprimeable number, because it can be changed into a prime (249966083) 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, 5924 + ... + 23130.

It is an arithmetic number, because the mean of its divisors is an integer number (31834800).

Almost surely, 2^249966089 is an apocalyptic number.

It is an amenable number.

249966089 is a deficient number, since it is larger than the sum of its proper divisors (4712311).

249966089 is a wasteful number, since it uses less digits than its factorization.

249966089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17479.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 249966089 is about 15810.3159044973. The cubic root of 249966089 is about 629.9320402043.

The spelling of 249966089 in words is "two hundred forty-nine million, nine hundred sixty-six thousand, eighty-nine".