27255038281 has 9 divisors (see below), whose sum is σ = 28768323591. Its totient is φ = 25817590944.

The previous prime is 27255038227. The next prime is 27255038323. The reversal of 27255038281 is 18283055272.

The square root of 27255038281 is 165091.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 24505084681 + 2749953600 = 156541^2 + 52440^2 .

It is not a de Polignac number, because 27255038281 - 2²¹ = 27252941129 is a prime.

It is a super-2 number, since 2×27255038281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27255035281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3132385 + ... + 3141073.

It is an arithmetic number, because the mean of its divisors is an integer number (3196480399).

Almost surely, 2^27255038281 is an apocalyptic number.

27255038281 is the 165091-st square number.

27255038281 is the 82546-th centered octagonal number.

It is an amenable number.

27255038281 is a deficient number, since it is larger than the sum of its proper divisors (1513285310).

27255038281 is an frugal number, since it uses more digits than its factorization.

27255038281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17416 (or 8708 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 27255038281 in words is "twenty-seven billion, two hundred fifty-five million, thirty-eight thousand, two hundred eighty-one".