258025408 has 56 divisors (see below), whose sum is σ = 543519360. Its totient is φ = 121271040.

The previous prime is 258025393. The next prime is 258025409. The reversal of 258025408 is 804520852.

It is a super-2 number, since 2×258025408² = 133154222347132928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258025409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85363 + ... + 88333.

Almost surely, 2^258025408 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 258025408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271759680).

258025408 is an abundant number, since it is smaller than the sum of its proper divisors (285493952).

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

258025408 is a wasteful number, since it uses less digits than its factorization.

258025408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065 (or 3055 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 258025408 is about 16063.1693012307. The cubic root of 258025408 is about 636.6305732609.

The spelling of 258025408 in words is "two hundred fifty-eight million, twenty-five thousand, four hundred eight".