249750089 has 2 divisors, whose sum is σ = 249750090. Its totient is φ = 249750088.

The previous prime is 249750019. The next prime is 249750101. The reversal of 249750089 is 980057942.

It is a happy number.

249750089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192293689 + 57456400 = 13867^2 + 7580^2 .

It is a cyclic number.

It is not a de Polignac number, because 249750089 - 2¹⁶ = 249684553 is a prime.

It is not a weakly prime, because it can be changed into another prime (249750019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124875044 + 124875045.

It is an arithmetic number, because the mean of its divisors is an integer number (124875045).

Almost surely, 2^249750089 is an apocalyptic number.

It is an amenable number.

249750089 is a deficient number, since it is larger than the sum of its proper divisors (1).

249750089 is an equidigital number, since it uses as much as digits as its factorization.

249750089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 249750089 is about 15803.4834451142. The cubic root of 249750089 is about 629.7505428764.

The spelling of 249750089 in words is "two hundred forty-nine million, seven hundred fifty thousand, eighty-nine".