4000055405 has 8 divisors (see below), whose sum is σ = 4965586200. Its totient is φ = 3089697856.

The previous prime is 4000055399. The next prime is 4000055413. The reversal of 4000055405 is 5045500004.

It can be written as a sum of positive squares in 4 ways, for example, as 574177444 + 3425877961 = 23962^2 + 58531^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4000055405 - 2¹⁰ = 4000054381 is a prime.

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, 13793150 + ... + 13793439.

It is an arithmetic number, because the mean of its divisors is an integer number (620698275).

Almost surely, 2^4000055405 is an apocalyptic number.

It is an amenable number.

4000055405 is a deficient number, since it is larger than the sum of its proper divisors (965530795).

4000055405 is a wasteful number, since it uses less digits than its factorization.

4000055405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27586623.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 4000055405 is about 63245.9912168352. The cubic root of 4000055405 is about 1587.4083810973.

Adding to 4000055405 its reverse (5045500004), we get a palindrome (9045555409).

The spelling of 4000055405 in words is "four billion, fifty-five thousand, four hundred five".