27447425055 has 24 divisors (see below), whose sum is σ = 50374099152. Its totient is φ = 13777530624.

The previous prime is 27447425053. The next prime is 27447425069. The reversal of 27447425055 is 55052474472.

27447425055 is a `hidden beast` number, since 2 + 74 + 4 + 74 + 2 + 505 + 5 = 666.

It is not a de Polignac number, because 27447425055 - 2¹ = 27447425053 is a prime.

It is a super-2 number, since 2×27447425055² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 27447425055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27447425053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17938729 + ... + 17940258.

It is an arithmetic number, because the mean of its divisors is an integer number (2098920798).

Almost surely, 2^27447425055 is an apocalyptic number.

27447425055 is a deficient number, since it is larger than the sum of its proper divisors (22926674097).

27447425055 is a wasteful number, since it uses less digits than its factorization.

27447425055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35879015 (or 35879012 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 45.

The spelling of 27447425055 in words is "twenty-seven billion, four hundred forty-seven million, four hundred twenty-five thousand, fifty-five".