258751 has 4 divisors (see below), whose sum is σ = 265104. Its totient is φ = 252400.

The previous prime is 258743. The next prime is 258763. The reversal of 258751 is 157852.

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

It is a cyclic number.

It is not a de Polignac number, because 258751 - 2³ = 258743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258721) 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, 3115 + ... + 3196.

It is an arithmetic number, because the mean of its divisors is an integer number (66276).

2²⁵⁸⁷⁵¹ is an apocalyptic number.

258751 is a deficient number, since it is larger than the sum of its proper divisors (6353).

258751 is an equidigital number, since it uses as much as digits as its factorization.

258751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352.

The product of its digits is 2800, while the sum is 28.

The square root of 258751 is about 508.6757316798. The cubic root of 258751 is about 63.7226770006.

The spelling of 258751 in words is "two hundred fifty-eight thousand, seven hundred fifty-one".