258325656 has 16 divisors (see below), whose sum is σ = 645814200. Its totient is φ = 86108544.

The previous prime is 258325643. The next prime is 258325679. The reversal of 258325656 is 656523852.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

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, 5381761 + ... + 5381808.

Almost surely, 2^258325656 is an apocalyptic number.

It is an amenable number.

258325656 is an abundant number, since it is smaller than the sum of its proper divisors (387488544).

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

258325656 is a wasteful number, since it uses less digits than its factorization.

258325656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10763578 (or 10763574 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 258325656 is about 16072.5124358328. The cubic root of 258325656 is about 636.8774132444.

The spelling of 258325656 in words is "two hundred fifty-eight million, three hundred twenty-five thousand, six hundred fifty-six".