255043554401 has 4 divisors (see below), whose sum is σ = 255104268804. Its totient is φ = 254982840000.

The previous prime is 255043554397. The next prime is 255043554419. The reversal of 255043554401 is 104455340552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55613430625 + 199430123776 = 235825^2 + 446576^2 .

It is a cyclic number.

It is not a de Polignac number, because 255043554401 - 2² = 255043554397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255043554421) 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, 30350900 + ... + 30359301.

It is an arithmetic number, because the mean of its divisors is an integer number (63776067201).

Almost surely, 2^255043554401 is an apocalyptic number.

It is an amenable number.

255043554401 is a deficient number, since it is larger than the sum of its proper divisors (60714403).

255043554401 is an equidigital number, since it uses as much as digits as its factorization.

255043554401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60714402.

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 255043554401 its reverse (104455340552), we get a palindrome (359498894953).

The spelling of 255043554401 in words is "two hundred fifty-five billion, forty-three million, five hundred fifty-four thousand, four hundred one".