255540013 has 8 divisors (see below), whose sum is σ = 264026048. Its totient is φ = 247169664.

The previous prime is 255540011. The next prime is 255540031. The reversal of 255540013 is 310045552.

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 255540013 - 2¹ = 255540011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255540013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255540011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24420 + ... + 33277.

It is an arithmetic number, because the mean of its divisors is an integer number (33003256).

Almost surely, 2^255540013 is an apocalyptic number.

It is an amenable number.

255540013 is a deficient number, since it is larger than the sum of its proper divisors (8486035).

255540013 is a wasteful number, since it uses less digits than its factorization.

255540013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57843.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 255540013 is about 15985.6189432877. The cubic root of 255540013 is about 634.5798886924.

Adding to 255540013 its reverse (310045552), we get a palindrome (565585565).

The spelling of 255540013 in words is "two hundred fifty-five million, five hundred forty thousand, thirteen".