27752750005 has 4 divisors (see below), whose sum is σ = 33303300012. Its totient is φ = 22202200000.

The previous prime is 27752749993. The next prime is 27752750017. The reversal of 27752750005 is 50005725772.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (27752749993) and next prime (27752750017).

It can be written as a sum of positive squares in 2 ways, for example, as 10966697284 + 16786052721 = 104722^2 + 129561^2 .

It is a de Polignac number, because none of the positive numbers 2^k-27752750005 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27752750005.

It is a congruent 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, 2775274996 + ... + 2775275005.

It is an arithmetic number, because the mean of its divisors is an integer number (8325825003).

Almost surely, 2^27752750005 is an apocalyptic number.

It is an amenable number.

27752750005 is a deficient number, since it is larger than the sum of its proper divisors (5550550007).

27752750005 is an equidigital number, since it uses as much as digits as its factorization.

27752750005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550550006.

The product of its (nonzero) digits is 171500, while the sum is 40.

The spelling of 27752750005 in words is "twenty-seven billion, seven hundred fifty-two million, seven hundred fifty thousand, five".