255577222247 has 16 divisors (see below), whose sum is σ = 261804070752. Its totient is φ = 249427123200.

The previous prime is 255577222211. The next prime is 255577222321. The reversal of 255577222247 is 742222775552.

It is a cyclic number.

It is not a de Polignac number, because 255577222247 - 2⁶ = 255577222183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255577222195 and 255577222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255577222447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13092068 + ... + 13111574.

It is an arithmetic number, because the mean of its divisors is an integer number (16362754422).

Almost surely, 2^255577222247 is an apocalyptic number.

255577222247 is a deficient number, since it is larger than the sum of its proper divisors (6226848505).

255577222247 is a wasteful number, since it uses less digits than its factorization.

255577222247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21458.

The product of its digits is 5488000, while the sum is 50.

Adding to 255577222247 its reverse (742222775552), we get a palindrome (997799997799).

The spelling of 255577222247 in words is "two hundred fifty-five billion, five hundred seventy-seven million, two hundred twenty-two thousand, two hundred forty-seven".