255240115436 has 12 divisors (see below), whose sum is σ = 446676311928. Its totient is φ = 127618312032.

The previous prime is 255240115433. The next prime is 255240115447. The reversal of 255240115436 is 634511042552.

It is a self number, because there is not a number n which added to its sum of digits gives 255240115436.

It is not an unprimeable number, because it can be changed into a prime (255240115433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74006 + ... + 718301.

It is an arithmetic number, because the mean of its divisors is an integer number (37223025994).

Almost surely, 2^255240115436 is an apocalyptic number.

It is an amenable number.

255240115436 is a deficient number, since it is larger than the sum of its proper divisors (191436196492).

255240115436 is a wasteful number, since it uses less digits than its factorization.

255240115436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872848 (or 872846 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 255240115436 its reverse (634511042552), we get a palindrome (889751157988).

The spelling of 255240115436 in words is "two hundred fifty-five billion, two hundred forty million, one hundred fifteen thousand, four hundred thirty-six".