255889653409 has 12 divisors (see below), whose sum is σ = 277146420096. Its totient is φ = 236155703472.

The previous prime is 255889653407. The next prime is 255889653421. The reversal of 255889653409 is 904356988552.

It is not a de Polignac number, because 255889653409 - 2¹ = 255889653407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255889653403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 650044 + ... + 966610.

It is an arithmetic number, because the mean of its divisors is an integer number (23095535008).

Almost surely, 2^255889653409 is an apocalyptic number.

It is an amenable number.

255889653409 is a deficient number, since it is larger than the sum of its proper divisors (21256766687).

255889653409 is a wasteful number, since it uses less digits than its factorization.

255889653409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321376 (or 321363 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 64.

The spelling of 255889653409 in words is "two hundred fifty-five billion, eight hundred eighty-nine million, six hundred fifty-three thousand, four hundred nine".