258575668 has 12 divisors (see below), whose sum is σ = 487315780. Its totient is φ = 119342592.

The previous prime is 258575659. The next prime is 258575671. The reversal of 258575668 is 866575852.

It can be written as a sum of positive squares in 2 ways, for example, as 121264144 + 137311524 = 11012^2 + 11718^2 .

It is a super-2 number, since 2×258575668² = 133722752163292448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 4972609 = 258575668 / (2 + 5 + 8 + 5 + 7 + 5 + 6 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2486253 + ... + 2486356.

Almost surely, 2^258575668 is an apocalyptic number.

It is an amenable number.

258575668 is a deficient number, since it is larger than the sum of its proper divisors (228740112).

258575668 is a wasteful number, since it uses less digits than its factorization.

258575668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972626 (or 4972624 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 52.

The square root of 258575668 is about 16080.2881814972. The cubic root of 258575668 is about 637.0828072915.

The spelling of 258575668 in words is "two hundred fifty-eight million, five hundred seventy-five thousand, six hundred sixty-eight".