258472221 has 8 divisors (see below), whose sum is σ = 393862464. Its totient is φ = 147698400.

The previous prime is 258472213. The next prime is 258472261. The reversal of 258472221 is 122274852.

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

It is not a de Polignac number, because 258472221 - 2³ = 258472213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258472211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6154080 + ... + 6154121.

It is an arithmetic number, because the mean of its divisors is an integer number (49232808).

Almost surely, 2^258472221 is an apocalyptic number.

258472221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

258472221 is a deficient number, since it is larger than the sum of its proper divisors (135390243).

258472221 is a wasteful number, since it uses less digits than its factorization.

258472221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12308211.

The product of its digits is 17920, while the sum is 33.

The square root of 258472221 is about 16077.0712817976. The cubic root of 258472221 is about 636.9978378429.

The spelling of 258472221 in words is "two hundred fifty-eight million, four hundred seventy-two thousand, two hundred twenty-one".