255557781359 has 8 divisors (see below), whose sum is σ = 255789774240. Its totient is φ = 255325849056.

The previous prime is 255557781329. The next prime is 255557781361. The reversal of 255557781359 is 953187755552.

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 255557781359 - 2⁸ = 255557781103 is a prime.

It is a super-2 number, since 2×255557781359² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255557781319) 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, 13809917 + ... + 13828409.

It is an arithmetic number, because the mean of its divisors is an integer number (31973721780).

Almost surely, 2^255557781359 is an apocalyptic number.

255557781359 is a deficient number, since it is larger than the sum of its proper divisors (231992881).

255557781359 is a wasteful number, since it uses less digits than its factorization.

255557781359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30289.

The product of its digits is 66150000, while the sum is 62.

The spelling of 255557781359 in words is "two hundred fifty-five billion, five hundred fifty-seven million, seven hundred eighty-one thousand, three hundred fifty-nine".