258240001 has 4 divisors (see below), whose sum is σ = 271831600. Its totient is φ = 244648404.

The previous prime is 258239999. The next prime is 258240053. The reversal of 258240001 is 100042852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258240001 - 2¹ = 258239999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258240061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6795771 + ... + 6795808.

It is an arithmetic number, because the mean of its divisors is an integer number (67957900).

Almost surely, 2^258240001 is an apocalyptic number.

It is an amenable number.

258240001 is a deficient number, since it is larger than the sum of its proper divisors (13591599).

258240001 is a wasteful number, since it uses less digits than its factorization.

258240001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13591598.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 258240001 is about 16069.8475723947. The cubic root of 258240001 is about 636.8070140357.

Adding to 258240001 its reverse (100042852), we get a palindrome (358282853).

The spelling of 258240001 in words is "two hundred fifty-eight million, two hundred forty thousand, one".