258431375 has 8 divisors (see below), whose sum is σ = 322522512. Its totient is φ = 206745000.

The previous prime is 258431363. The next prime is 258431389. The reversal of 258431375 is 573134852.

It is not a de Polignac number, because 258431375 - 2⁶ = 258431311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033601 + ... + 1033850.

It is an arithmetic number, because the mean of its divisors is an integer number (40315314).

Almost surely, 2^258431375 is an apocalyptic number.

258431375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

258431375 is a deficient number, since it is larger than the sum of its proper divisors (64091137).

258431375 is an equidigital number, since it uses as much as digits as its factorization.

258431375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067466 (or 2067456 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 258431375 is about 16075.8009131738. The cubic root of 258431375 is about 636.9642814524.

The spelling of 258431375 in words is "two hundred fifty-eight million, four hundred thirty-one thousand, three hundred seventy-five".