251059 has 2 divisors, whose sum is σ = 251060. Its totient is φ = 251058.

The previous prime is 251057. The next prime is 251063. The reversal of 251059 is 950152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 251059 - 2¹ = 251057 is a prime.

Together with 251057, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (251051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125529 + 125530.

It is an arithmetic number, because the mean of its divisors is an integer number (125530).

2²⁵¹⁰⁵⁹ is an apocalyptic number.

251059 is a deficient number, since it is larger than the sum of its proper divisors (1).

251059 is an equidigital number, since it uses as much as digits as its factorization.

251059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 251059 is about 501.0578808880. The cubic root of 251059 is about 63.0848776176.

The spelling of 251059 in words is "two hundred fifty-one thousand, fifty-nine".