27755255511 has 12 divisors (see below), whose sum is σ = 40146079792. Its totient is φ = 18478047456.

The previous prime is 27755255509. The next prime is 27755255579. The reversal of 27755255511 is 11555255772.

27755255511 is a `hidden beast` number, since 2 + 7 + 75 + 5 + 25 + 551 + 1 = 666.

It is not a de Polignac number, because 27755255511 - 2¹ = 27755255509 is a prime.

It is a super-2 number, since 2×27755255511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27755253511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2114446 + ... + 2127531.

Almost surely, 2^27755255511 is an apocalyptic number.

27755255511 is a deficient number, since it is larger than the sum of its proper divisors (12390824281).

27755255511 is a wasteful number, since it uses less digits than its factorization.

27755255511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242710 (or 4242707 counting only the distinct ones).

The product of its digits is 612500, while the sum is 45.

The spelling of 27755255511 in words is "twenty-seven billion, seven hundred fifty-five million, two hundred fifty-five thousand, five hundred eleven".