22777550255 has 4 divisors (see below), whose sum is σ = 27333060312. Its totient is φ = 18222040200.

The previous prime is 22777550251. The next prime is 22777550261. The reversal of 22777550255 is 55205577722.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22777550255 - 2² = 22777550251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22777550251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2277755021 + ... + 2277755030.

It is an arithmetic number, because the mean of its divisors is an integer number (6833265078).

Almost surely, 2^22777550255 is an apocalyptic number.

22777550255 is a deficient number, since it is larger than the sum of its proper divisors (4555510057).

22777550255 is an equidigital number, since it uses as much as digits as its factorization.

22777550255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4555510056.

The product of its (nonzero) digits is 1715000, while the sum is 47.

The spelling of 22777550255 in words is "twenty-two billion, seven hundred seventy-seven million, five hundred fifty thousand, two hundred fifty-five".