385574557 has 4 divisors (see below), whose sum is σ = 385630560. Its totient is φ = 385518556.

The previous prime is 385574551. The next prime is 385574587. The reversal of 385574557 is 755475583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 385574557 - 2¹⁵ = 385541789 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385574557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385574551) 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, 15943 + ... + 32020.

It is an arithmetic number, because the mean of its divisors is an integer number (96407640).

Almost surely, 2^385574557 is an apocalyptic number.

It is an amenable number.

385574557 is a deficient number, since it is larger than the sum of its proper divisors (56003).

385574557 is an equidigital number, since it uses as much as digits as its factorization.

385574557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56002.

The product of its digits is 2940000, while the sum is 49.

The square root of 385574557 is about 19636.0524800684. The cubic root of 385574557 is about 727.8403406716.

The spelling of 385574557 in words is "three hundred eighty-five million, five hundred seventy-four thousand, five hundred fifty-seven".