255539619947 has 16 divisors (see below), whose sum is σ = 264005792160. Its totient is φ = 247253472000.

The previous prime is 255539619913. The next prime is 255539619953. The reversal of 255539619947 is 749916935552.

It is a cyclic number.

It is not a de Polignac number, because 255539619947 - 2¹⁰ = 255539618923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255539619047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644672 + ... + 962642.

It is an arithmetic number, because the mean of its divisors is an integer number (16500362010).

Almost surely, 2^255539619947 is an apocalyptic number.

255539619947 is a deficient number, since it is larger than the sum of its proper divisors (8466172213).

255539619947 is a wasteful number, since it uses less digits than its factorization.

255539619947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318254.

The product of its digits is 91854000, while the sum is 65.

The spelling of 255539619947 in words is "two hundred fifty-five billion, five hundred thirty-nine million, six hundred nineteen thousand, nine hundred forty-seven".