385585567 has 4 divisors (see below), whose sum is σ = 387716056. Its totient is φ = 383455080.

The previous prime is 385585561. The next prime is 385585609. The reversal of 385585567 is 765585583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385585567 - 2³ = 385585559 is a prime.

It is a super-2 number, since 2×385585567² = 297352458957422978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385585561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064973 + ... + 1065334.

It is an arithmetic number, because the mean of its divisors is an integer number (96929014).

Almost surely, 2^385585567 is an apocalyptic number.

385585567 is a deficient number, since it is larger than the sum of its proper divisors (2130489).

385585567 is a wasteful number, since it uses less digits than its factorization.

385585567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130488.

The product of its digits is 5040000, while the sum is 52.

The square root of 385585567 is about 19636.3328297317. The cubic root of 385585567 is about 727.8472683814.

The spelling of 385585567 in words is "three hundred eighty-five million, five hundred eighty-five thousand, five hundred sixty-seven".