2747255905 has 4 divisors (see below), whose sum is σ = 3296707092. Its totient is φ = 2197804720.

The previous prime is 2747255893. The next prime is 2747255933. The reversal of 2747255905 is 5095527472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1393678224 + 1353577681 = 37332^2 + 36791^2 .

It is not a de Polignac number, because 2747255905 - 2⁹ = 2747255393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274725586 + ... + 274725595.

It is an arithmetic number, because the mean of its divisors is an integer number (824176773).

Almost surely, 2^2747255905 is an apocalyptic number.

It is an amenable number.

2747255905 is a deficient number, since it is larger than the sum of its proper divisors (549451187).

2747255905 is an equidigital number, since it uses as much as digits as its factorization.

2747255905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549451186.

The product of its (nonzero) digits is 882000, while the sum is 46.

The square root of 2747255905 is about 52414.2719590762. The cubic root of 2747255905 is about 1400.5535064760.

The spelling of 2747255905 in words is "two billion, seven hundred forty-seven million, two hundred fifty-five thousand, nine hundred five".