258015232 has 68 divisors (see below), whose sum is σ = 536866816. Its totient is φ = 123863040.

The previous prime is 258015157. The next prime is 258015257. The reversal of 258015232 is 232510852.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 258015232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2031553 + ... + 2031679.

Almost surely, 2^258015232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258015232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268433408).

258015232 is an abundant number, since it is smaller than the sum of its proper divisors (278851584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258015232 is an frugal number, since it uses more digits than its factorization.

258015232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 258015232 is about 16062.8525486602. The cubic root of 258015232 is about 636.6222040104.

The spelling of 258015232 in words is "two hundred fifty-eight million, fifteen thousand, two hundred thirty-two".