258512081 has 32 divisors (see below), whose sum is σ = 300303360. Its totient is φ = 220962816.

The previous prime is 258512029. The next prime is 258512117. The reversal of 258512081 is 180215852.

It is a happy number.

258512081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 258512081 - 2⁶ = 258512017 is a prime.

It is a super-2 number, since 2×258512081² = 133656992045901122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258512581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1159136 + ... + 1159358.

It is an arithmetic number, because the mean of its divisors is an integer number (9384480).

Almost surely, 2^258512081 is an apocalyptic number.

It is an amenable number.

258512081 is a deficient number, since it is larger than the sum of its proper divisors (41791279).

258512081 is a wasteful number, since it uses less digits than its factorization.

258512081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 258512081 is about 16078.3108876523. The cubic root of 258512081 is about 637.0305807925.

The spelling of 258512081 in words is "two hundred fifty-eight million, five hundred twelve thousand, eighty-one".