40015255 has 16 divisors (see below), whose sum is σ = 54996480. Its totient is φ = 27379872.

The previous prime is 40015249. The next prime is 40015259. The reversal of 40015255 is 55251004.

40015255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40015255 - 2³ = 40015247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40015259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20742 + ... + 22588.

It is an arithmetic number, because the mean of its divisors is an integer number (3437280).

Almost surely, 2^40015255 is an apocalyptic number.

40015255 is a deficient number, since it is larger than the sum of its proper divisors (14981225).

40015255 is a wasteful number, since it uses less digits than its factorization.

40015255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 40015255 is about 6325.7612190155. The cubic root of 40015255 is about 342.0386599481.

Adding to 40015255 its reverse (55251004), we get a palindrome (95266259).

The spelling of 40015255 in words is "forty million, fifteen thousand, two hundred fifty-five".