249995059 has 4 divisors (see below), whose sum is σ = 250428904. Its totient is φ = 249561216.

The previous prime is 249995033. The next prime is 249995063. The reversal of 249995059 is 950599942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249995059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249994997 and 249995015.

It is not an unprimeable number, because it can be changed into a prime (249992059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216057 + ... + 217210.

It is an arithmetic number, because the mean of its divisors is an integer number (62607226).

Almost surely, 2^249995059 is an apocalyptic number.

249995059 is a deficient number, since it is larger than the sum of its proper divisors (433845).

249995059 is an equidigital number, since it uses as much as digits as its factorization.

249995059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433844.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The square root of 249995059 is about 15811.2320519307. The cubic root of 249995059 is about 629.9563747402.

The spelling of 249995059 in words is "two hundred forty-nine million, nine hundred ninety-five thousand, fifty-nine".