258248057 has 4 divisors (see below), whose sum is σ = 271840080. Its totient is φ = 244656036.

The previous prime is 258248041. The next prime is 258248059. The reversal of 258248057 is 750842852.

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 258248057 - 2⁴ = 258248041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258248059) 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, 6795983 + ... + 6796020.

It is an arithmetic number, because the mean of its divisors is an integer number (67960020).

Almost surely, 2^258248057 is an apocalyptic number.

It is an amenable number.

258248057 is a deficient number, since it is larger than the sum of its proper divisors (13592023).

258248057 is a wasteful number, since it uses less digits than its factorization.

258248057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13592022.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 258248057 is about 16070.0982262088. The cubic root of 258248057 is about 636.8136358654.

The spelling of 258248057 in words is "two hundred fifty-eight million, two hundred forty-eight thousand, fifty-seven".