2005154055 has 16 divisors (see below), whose sum is σ = 3564718560. Its totient is φ = 1069415424.

The previous prime is 2005154051. The next prime is 2005154071. The reversal of 2005154055 is 5504515002.

2005154055 is a `hidden beast` number, since 20 + 0 + 51 + 540 + 55 = 666.

It is not a de Polignac number, because 2005154055 - 2² = 2005154051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005154051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7426362 + ... + 7426631.

It is an arithmetic number, because the mean of its divisors is an integer number (222794910).

Almost surely, 2^2005154055 is an apocalyptic number.

2005154055 is a deficient number, since it is larger than the sum of its proper divisors (1559564505).

2005154055 is a wasteful number, since it uses less digits than its factorization.

2005154055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14853007 (or 14853001 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2005154055 is about 44778.9465597394. The cubic root of 2005154055 is about 1261.0024052631.

Adding to 2005154055 its reverse (5504515002), we get a palindrome (7509669057).

The spelling of 2005154055 in words is "two billion, five million, one hundred fifty-four thousand, fifty-five".