385055500 has 24 divisors (see below), whose sum is σ = 840962304. Its totient is φ = 154022000.

The previous prime is 385055467. The next prime is 385055513. The reversal of 385055500 is 5550583.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384556 + ... + 385555.

It is an arithmetic number, because the mean of its divisors is an integer number (35040096).

Almost surely, 2^385055500 is an apocalyptic number.

It is an amenable number.

385055500 is an abundant number, since it is smaller than the sum of its proper divisors (455906804).

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

385055500 is a wasteful number, since it uses less digits than its factorization.

385055500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770130 (or 770118 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 385055500 is about 19622.8310903396. The cubic root of 385055500 is about 727.5135899651.

The spelling of 385055500 in words is "three hundred eighty-five million, fifty-five thousand, five hundred".