185055385 has 4 divisors (see below), whose sum is σ = 222066468. Its totient is φ = 148044304.

The previous prime is 185055373. The next prime is 185055413. The reversal of 185055385 is 583550581.

185055385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583550581 = 41 ⋅14232941.

It can be written as a sum of positive squares in 2 ways, for example, as 36288576 + 148766809 = 6024^2 + 12197^2 .

It is a cyclic number.

It is not a de Polignac number, because 185055385 - 2⁷ = 185055257 is a prime.

It is a Duffinian 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, 18505534 + ... + 18505543.

It is an arithmetic number, because the mean of its divisors is an integer number (55516617).

Almost surely, 2^185055385 is an apocalyptic number.

It is an amenable number.

185055385 is a deficient number, since it is larger than the sum of its proper divisors (37011083).

185055385 is an equidigital number, since it uses as much as digits as its factorization.

185055385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37011082.

The product of its (nonzero) digits is 120000, while the sum is 40.

The square root of 185055385 is about 13603.5063494674. The cubic root of 185055385 is about 569.8587779821.

The spelling of 185055385 in words is "one hundred eighty-five million, fifty-five thousand, three hundred eighty-five".