255040001 has 16 divisors (see below), whose sum is σ = 283274496. Its totient is φ = 228554496.

The previous prime is 255039979. The next prime is 255040033. The reversal of 255040001 is 100040552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255040001 is a prime.

It is a super-2 number, since 2×255040001² = 130090804220160002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255040301) 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, 25250 + ... + 33876.

It is an arithmetic number, because the mean of its divisors is an integer number (17704656).

Almost surely, 2^255040001 is an apocalyptic number.

It is an amenable number.

255040001 is a deficient number, since it is larger than the sum of its proper divisors (28234495).

255040001 is a wasteful number, since it uses less digits than its factorization.

255040001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 255040001 is about 15969.9718534505. The cubic root of 255040001 is about 634.1657268924.

Adding to 255040001 its reverse (100040552), we get a palindrome (355080553).

The spelling of 255040001 in words is "two hundred fifty-five million, forty thousand, one".