258285081 has 8 divisors (see below), whose sum is σ = 344637504. Its totient is φ = 172061360.

The previous prime is 258285077. The next prime is 258285113. The reversal of 258285081 is 180582852.

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 258285081 - 2² = 258285077 is a prime.

It is a super-2 number, since 2×258285081² = 133422366134353122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258285061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27390 + ... + 35591.

It is an arithmetic number, because the mean of its divisors is an integer number (43079688).

Almost surely, 2^258285081 is an apocalyptic number.

It is an amenable number.

258285081 is a deficient number, since it is larger than the sum of its proper divisors (86352423).

258285081 is a wasteful number, since it uses less digits than its factorization.

258285081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64351.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 258285081 is about 16071.2501380571. The cubic root of 258285081 is about 636.8440668932.

The spelling of 258285081 in words is "two hundred fifty-eight million, two hundred eighty-five thousand, eighty-one".