185440055 has 8 divisors (see below), whose sum is σ = 223416144. Its totient is φ = 147760000.

The previous prime is 185440033. The next prime is 185440069. The reversal of 185440055 is 550044581.

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

It is not a de Polignac number, because 185440055 - 2²² = 181245751 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 7 ways as a sum of consecutive naturals, for example, 72626 + ... + 75135.

It is an arithmetic number, because the mean of its divisors is an integer number (27927018).

Almost surely, 2^185440055 is an apocalyptic number.

185440055 is a deficient number, since it is larger than the sum of its proper divisors (37976089).

185440055 is a wasteful number, since it uses less digits than its factorization.

185440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148017.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 185440055 is about 13617.6376438794. The cubic root of 185440055 is about 570.2533551050.

The spelling of 185440055 in words is "one hundred eighty-five million, four hundred forty thousand, fifty-five".