254563957513 has 4 divisors (see below), whose sum is σ = 267962060560. Its totient is φ = 241165854468.

The previous prime is 254563957511. The next prime is 254563957561. The reversal of 254563957513 is 315759365452.

254563957513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254563957513 - 2¹ = 254563957511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254563957511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6699051495 + ... + 6699051532.

It is an arithmetic number, because the mean of its divisors is an integer number (66990515140).

Almost surely, 2^254563957513 is an apocalyptic number.

It is an amenable number.

254563957513 is a deficient number, since it is larger than the sum of its proper divisors (13398103047).

254563957513 is a wasteful number, since it uses less digits than its factorization.

254563957513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13398103046.

The product of its digits is 17010000, while the sum is 55.

The spelling of 254563957513 in words is "two hundred fifty-four billion, five hundred sixty-three million, nine hundred fifty-seven thousand, five hundred thirteen".