258220530 has 24 divisors (see below), whose sum is σ = 671373612. Its totient is φ = 68858784.

The previous prime is 258220489. The next prime is 258220537. The reversal of 258220530 is 35022852.

258220530 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 2 ways, for example, as 210569121 + 47651409 = 14511^2 + 6903^2 .

It is a super-2 number, since 2×258220530² = 133355684226961800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 258220494 and 258220503.

It is not an unprimeable number, because it can be changed into a prime (258220537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1434469 + ... + 1434648.

Almost surely, 2^258220530 is an apocalyptic number.

258220530 is an abundant number, since it is smaller than the sum of its proper divisors (413153082).

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

258220530 is a wasteful number, since it uses less digits than its factorization.

258220530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869130 (or 2869127 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 258220530 is about 16069.2417369333. The cubic root of 258220530 is about 636.7910087938.

The spelling of 258220530 in words is "two hundred fifty-eight million, two hundred twenty thousand, five hundred thirty".