258247530 has 48 divisors (see below), whose sum is σ = 672412104. Its totient is φ = 68766720.

The previous prime is 258247511. The next prime is 258247567. The reversal of 258247530 is 35742852.

258247530 is a `hidden beast` number, since 2 + 5 + 82 + 47 + 530 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 211091841 + 47155689 = 14529^2 + 6867^2 .

It is a super-2 number, since 2×258247530² = 133383573502201800, 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, 77662 + ... + 80918.

Almost surely, 2^258247530 is an apocalyptic number.

258247530 is an abundant number, since it is smaller than the sum of its proper divisors (414164574).

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

258247530 is a wasteful number, since it uses less digits than its factorization.

258247530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151 (or 4148 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 258247530 is about 16070.0818292876. The cubic root of 258247530 is about 636.8132026888.

The spelling of 258247530 in words is "two hundred fifty-eight million, two hundred forty-seven thousand, five hundred thirty".