258075997 has 8 divisors (see below), whose sum is σ = 273446712. Its totient is φ = 242726400.

The previous prime is 258075991. The next prime is 258076001. The reversal of 258075997 is 799570852.

It can be written as a sum of positive squares in 4 ways, for example, as 115369081 + 142706916 = 10741^2 + 11946^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258075997 - 2³ = 258075989 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 (258075991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24847 + ... + 33667.

It is an arithmetic number, because the mean of its divisors is an integer number (34180839).

Almost surely, 2^258075997 is an apocalyptic number.

It is an amenable number.

258075997 is a deficient number, since it is larger than the sum of its proper divisors (15370715).

258075997 is a wasteful number, since it uses less digits than its factorization.

258075997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10559.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The square root of 258075997 is about 16064.7439133028. The cubic root of 258075997 is about 636.6721769151.

The spelling of 258075997 in words is "two hundred fifty-eight million, seventy-five thousand, nine hundred ninety-seven".