258485155 has 8 divisors (see below), whose sum is σ = 323668512. Its totient is φ = 197797248.

The previous prime is 258485113. The next prime is 258485209. The reversal of 258485155 is 551584852.

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

It is a cyclic number.

It is not a de Polignac number, because 258485155 - 2⁷ = 258485027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123734 + ... + 1123963.

It is an arithmetic number, because the mean of its divisors is an integer number (40458564).

Almost surely, 2^258485155 is an apocalyptic number.

258485155 is a deficient number, since it is larger than the sum of its proper divisors (65183357).

258485155 is a wasteful number, since it uses less digits than its factorization.

258485155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247725.

The product of its digits is 320000, while the sum is 43.

The square root of 258485155 is about 16077.4735266459. The cubic root of 258485155 is about 637.0084628308.

The spelling of 258485155 in words is "two hundred fifty-eight million, four hundred eighty-five thousand, one hundred fifty-five".