387205055 has 8 divisors (see below), whose sum is σ = 465595344. Its totient is φ = 309131200.

The previous prime is 387205019. The next prime is 387205057. The reversal of 387205055 is 550502783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 387205055 - 2¹⁴ = 387188671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387205057) by changing a digit.

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, 76406 + ... + 81315.

It is an arithmetic number, because the mean of its divisors is an integer number (58199418).

Almost surely, 2^387205055 is an apocalyptic number.

387205055 is a deficient number, since it is larger than the sum of its proper divisors (78390289).

387205055 is a wasteful number, since it uses less digits than its factorization.

387205055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158217.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 387205055 is about 19677.5266484383. The cubic root of 387205055 is about 728.8648492528.

The spelling of 387205055 in words is "three hundred eighty-seven million, two hundred five thousand, fifty-five".