255240036 has 18 divisors (see below), whose sum is σ = 645190182. Its totient is φ = 85080000.

The previous prime is 255240031. The next prime is 255240061. The reversal of 255240036 is 630042552.

255240036 is a `hidden beast` number, since 255 + 2 + 400 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 232257600 + 22982436 = 15240^2 + 4794^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 255239991 and 255240009.

It is not an unprimeable number, because it can be changed into a prime (255240031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3544965 + ... + 3545036.

It is an arithmetic number, because the mean of its divisors is an integer number (35843899).

Almost surely, 2^255240036 is an apocalyptic number.

It is an amenable number.

255240036 is an abundant number, since it is smaller than the sum of its proper divisors (389950146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255240036 is a wasteful number, since it uses less digits than its factorization.

255240036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090011 (or 7090006 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 255240036 is about 15976.2334735068. The cubic root of 255240036 is about 634.3314815318.

Adding to 255240036 its reverse (630042552), we get a palindrome (885282588).

The spelling of 255240036 in words is "two hundred fifty-five million, two hundred forty thousand, thirty-six".