254505320513 has 2 divisors, whose sum is σ = 254505320514. Its totient is φ = 254505320512.

The previous prime is 254505320501. The next prime is 254505320539. The reversal of 254505320513 is 315023505452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203480383744 + 51024936769 = 451088^2 + 225887^2 .

It is a cyclic number.

It is not a de Polignac number, because 254505320513 - 2⁴ = 254505320497 is a prime.

It is a super-4 number, since 4×254505320513⁴ (a number of 47 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (254505325513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127252660256 + 127252660257.

It is an arithmetic number, because the mean of its divisors is an integer number (127252660257).

Almost surely, 2^254505320513 is an apocalyptic number.

It is an amenable number.

254505320513 is a deficient number, since it is larger than the sum of its proper divisors (1).

254505320513 is an equidigital number, since it uses as much as digits as its factorization.

254505320513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 254505320513 its reverse (315023505452), we get a palindrome (569528825965).

The spelling of 254505320513 in words is "two hundred fifty-four billion, five hundred five million, three hundred twenty thousand, five hundred thirteen".