258542 has 8 divisors (see below), whose sum is σ = 390096. Its totient is φ = 128512.

The previous prime is 258539. The next prime is 258551. The reversal of 258542 is 245852.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258542.

It is an unprimeable number.

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, 263 + ... + 765.

It is an arithmetic number, because the mean of its divisors is an integer number (48762).

2²⁵⁸⁵⁴² is an apocalyptic number.

258542 is a deficient number, since it is larger than the sum of its proper divisors (131554).

258542 is a wasteful number, since it uses less digits than its factorization.

258542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 3200, while the sum is 26.

The square root of 258542 is about 508.4702547839. The cubic root of 258542 is about 63.7055155508.

The spelling of 258542 in words is "two hundred fifty-eight thousand, five hundred forty-two".