27550500025505 has 16 divisors (see below), whose sum is σ = 33066501370704. Its totient is φ = 22036466242560.

The previous prime is 27550500025493. The next prime is 27550500025513. The reversal of 27550500025505 is 50552000505572.

It can be written as a sum of positive squares in 8 ways, for example, as 558828012304 + 26991672013201 = 747548^2 + 5195351^2 .

It is not a de Polignac number, because 27550500025505 - 2¹⁴ = 27550500009121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 981933437 + ... + 981961493.

It is an arithmetic number, because the mean of its divisors is an integer number (2066656335669).

Almost surely, 2^{27550500025505} is an apocalyptic number.

It is an amenable number.

27550500025505 is a deficient number, since it is larger than the sum of its proper divisors (5516001345199).

27550500025505 is a wasteful number, since it uses less digits than its factorization.

27550500025505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56116.

The product of its (nonzero) digits is 437500, while the sum is 41.

The spelling of 27550500025505 in words is "twenty-seven trillion, five hundred fifty billion, five hundred million, twenty-five thousand, five hundred five".