40055205 has 16 divisors (see below), whose sum is σ = 64362240. Its totient is φ = 21271488.

The previous prime is 40055189. The next prime is 40055207. The reversal of 40055205 is 50255004.

It is not a de Polignac number, because 40055205 - 2⁴ = 40055189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055207) 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, 2002 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (4022640).

Almost surely, 2^40055205 is an apocalyptic number.

It is an amenable number.

40055205 is a deficient number, since it is larger than the sum of its proper divisors (24307035).

40055205 is a wasteful number, since it uses less digits than its factorization.

40055205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11420.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 40055205 is about 6328.9181539976. The cubic root of 40055205 is about 342.1524490484.

The spelling of 40055205 in words is "forty million, fifty-five thousand, two hundred five".