258081530 has 48 divisors (see below), whose sum is σ = 543390120. Its totient is φ = 87994368.

The previous prime is 258081529. The next prime is 258081557. The reversal of 258081530 is 35180852.

It is a happy number.

258081530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 235223569 + 22857961 = 15337^2 + 4781^2 .

It is a super-2 number, since 2×258081530² = 133212152254281800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93206 + ... + 95934.

Almost surely, 2^258081530 is an apocalyptic number.

258081530 is an abundant number, since it is smaller than the sum of its proper divisors (285308590).

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

258081530 is a wasteful number, since it uses less digits than its factorization.

258081530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 258081530 is about 16064.9161217854. The cubic root of 258081530 is about 636.6767268435.

The spelling of 258081530 in words is "two hundred fifty-eight million, eighty-one thousand, five hundred thirty".