255013244321405 has 8 divisors (see below), whose sum is σ = 306016305248472. Its totient is φ = 204010320748608.

The previous prime is 255013244321401. The next prime is 255013244321447. The reversal of 255013244321405 is 504123442310552.

It can be written as a sum of positive squares in 4 ways, for example, as 30102845399236 + 224910398922169 = 5486606^2 + 14997013^2 .

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 255013244321405 - 2² = 255013244321401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255013244321401) 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, 30208874 + ... + 37717403.

It is an arithmetic number, because the mean of its divisors is an integer number (38252038156059).

Almost surely, 2^{255013244321405} is an apocalyptic number.

It is an amenable number.

255013244321405 is a deficient number, since it is larger than the sum of its proper divisors (51003060927067).

255013244321405 is an equidigital number, since it uses as much as digits as its factorization.

255013244321405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68677135.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 255013244321405 its reverse (504123442310552), we get a palindrome (759136686631957).

The spelling of 255013244321405 in words is "two hundred fifty-five trillion, thirteen billion, two hundred forty-four million, three hundred twenty-one thousand, four hundred five".