258120285 has 8 divisors (see below), whose sum is σ = 412992480. Its totient is φ = 137664144.

The previous prime is 258120277. The next prime is 258120293. The reversal of 258120285 is 582021852.

It is an interprime number because it is at equal distance from previous prime (258120277) and next prime (258120293).

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

It is not a de Polignac number, because 258120285 - 2³ = 258120277 is a prime.

It is a congruent number.

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, 8603995 + ... + 8604024.

It is an arithmetic number, because the mean of its divisors is an integer number (51624060).

Almost surely, 2^258120285 is an apocalyptic number.

It is an amenable number.

258120285 is a deficient number, since it is larger than the sum of its proper divisors (154872195).

258120285 is a wasteful number, since it uses less digits than its factorization.

258120285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17208027.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 258120285 is about 16066.1222763926. The cubic root of 258120285 is about 636.7085942558.

The spelling of 258120285 in words is "two hundred fifty-eight million, one hundred twenty thousand, two hundred eighty-five".