258216069 has 8 divisors (see below), whose sum is σ = 344363040. Its totient is φ = 172106576.

The previous prime is 258216067. The next prime is 258216097. The reversal of 258216069 is 960612852.

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 258216069 - 2¹ = 258216067 is a prime.

It is a super-2 number, since 2×258216069² = 133351076579625522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258216067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18874 + ... + 29540.

It is an arithmetic number, because the mean of its divisors is an integer number (43045380).

Almost surely, 2^258216069 is an apocalyptic number.

It is an amenable number.

258216069 is a deficient number, since it is larger than the sum of its proper divisors (86146971).

258216069 is a wasteful number, since it uses less digits than its factorization.

258216069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18739.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 258216069 is about 16069.1029307799. The cubic root of 258216069 is about 636.7873417202.

The spelling of 258216069 in words is "two hundred fifty-eight million, two hundred sixteen thousand, sixty-nine".