258875278 has 8 divisors (see below), whose sum is σ = 388475568. Its totient is φ = 129383424.

The previous prime is 258875261. The next prime is 258875293. The reversal of 258875278 is 872578852.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20851 + ... + 30862.

It is an arithmetic number, because the mean of its divisors is an integer number (48559446).

Almost surely, 2^258875278 is an apocalyptic number.

258875278 is a deficient number, since it is larger than the sum of its proper divisors (129600290).

258875278 is a wasteful number, since it uses less digits than its factorization.

258875278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54218.

The product of its digits is 2508800, while the sum is 52.

The square root of 258875278 is about 16089.6015488265. The cubic root of 258875278 is about 637.3287735966.

The spelling of 258875278 in words is "two hundred fifty-eight million, eight hundred seventy-five thousand, two hundred seventy-eight".