27505252555 has 16 divisors (see below), whose sum is σ = 36440699904. Its totient is φ = 19762806880.

The previous prime is 27505252547. The next prime is 27505252583. The reversal of 27505252555 is 55525250572.

It is not a de Polignac number, because 27505252555 - 2³ = 27505252547 is a prime.

It is a super-2 number, since 2×27505252555² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3008059 + ... + 3017188.

It is an arithmetic number, because the mean of its divisors is an integer number (2277543744).

Almost surely, 2^27505252555 is an apocalyptic number.

27505252555 is a deficient number, since it is larger than the sum of its proper divisors (8935447349).

27505252555 is a wasteful number, since it uses less digits than its factorization.

27505252555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6025346.

The product of its (nonzero) digits is 875000, while the sum is 43.

The spelling of 27505252555 in words is "twenty-seven billion, five hundred five million, two hundred fifty-two thousand, five hundred fifty-five".