258225916 has 18 divisors (see below), whose sum is σ = 489331752. Its totient is φ = 119180880.

The previous prime is 258225901. The next prime is 258225917. The reversal of 258225916 is 619522852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258225917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190320 + ... + 191671.

Almost surely, 2^258225916 is an apocalyptic number.

258225916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

258225916 is a deficient number, since it is larger than the sum of its proper divisors (231105836).

258225916 is a wasteful number, since it uses less digits than its factorization.

258225916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382021 (or 382006 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 258225916 is about 16069.4093233074. The cubic root of 258225916 is about 636.7954361884.

The spelling of 258225916 in words is "two hundred fifty-eight million, two hundred twenty-five thousand, nine hundred sixteen".