190055385 has 48 divisors (see below), whose sum is σ = 373464000. Its totient is φ = 88636032.

The previous prime is 190055363. The next prime is 190055401. The reversal of 190055385 is 583550091.

It is a happy number.

It is not a de Polignac number, because 190055385 - 2⁵ = 190055353 is a prime.

It is a super-2 number, since 2×190055385² = 72242098734996450, which contains 22 as substring.

Together with 183408615 it forms an amicable pair .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2566 + ... + 19664.

It is an arithmetic number, because the mean of its divisors is an integer number (7780500).

Almost surely, 2^190055385 is an apocalyptic number.

190055385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190055385 is a deficient number, since it is larger than the sum of its proper divisors (183408615).

190055385 is a wasteful number, since it uses less digits than its factorization.

190055385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17142 (or 17139 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 190055385 is about 13786.0576308095. The cubic root of 190055385 is about 574.9455625842.

The spelling of 190055385 in words is "one hundred ninety million, fifty-five thousand, three hundred eighty-five".