385878055 has 4 divisors (see below), whose sum is σ = 463053672. Its totient is φ = 308702440.

The previous prime is 385878043. The next prime is 385878133. The reversal of 385878055 is 550878583.

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

It is not a de Polignac number, because 385878055 - 2²³ = 377489447 is a prime.

It is a Duffinian number.

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, 38587801 + ... + 38587810.

It is an arithmetic number, because the mean of its divisors is an integer number (115763418).

Almost surely, 2^385878055 is an apocalyptic number.

385878055 is a deficient number, since it is larger than the sum of its proper divisors (77175617).

385878055 is an equidigital number, since it uses as much as digits as its factorization.

385878055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77175616.

The product of its (nonzero) digits is 1344000, while the sum is 49.

The square root of 385878055 is about 19643.7790407040. The cubic root of 385878055 is about 728.0312593499.

The spelling of 385878055 in words is "three hundred eighty-five million, eight hundred seventy-eight thousand, fifty-five".