27223776550 has 48 divisors (see below), whose sum is σ = 51964642800. Its totient is φ = 10604787200.

The previous prime is 27223776499. The next prime is 27223776551. The reversal of 27223776550 is 5567732272.

It is a super-2 number, since 2×27223776550² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27223776550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27223776551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1154781 + ... + 1178119.

It is an arithmetic number, because the mean of its divisors is an integer number (1082596725).

Almost surely, 2^27223776550 is an apocalyptic number.

27223776550 is a deficient number, since it is larger than the sum of its proper divisors (24740866250).

27223776550 is a wasteful number, since it uses less digits than its factorization.

27223776550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23961 (or 23956 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 46.

The spelling of 27223776550 in words is "twenty-seven billion, two hundred twenty-three million, seven hundred seventy-six thousand, five hundred fifty".