27505050545 has 32 divisors (see below), whose sum is σ = 38966593536. Its totient is φ = 18238809600.

The previous prime is 27505050511. The next prime is 27505050553. The reversal of 27505050545 is 54505050572.

It is a de Polignac number, because none of the positive numbers 2^k-27505050545 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27505050499 and 27505050508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1598327 + ... + 1615443.

It is an arithmetic number, because the mean of its divisors is an integer number (1217706048).

Almost surely, 2^27505050545 is an apocalyptic number.

It is an amenable number.

27505050545 is a deficient number, since it is larger than the sum of its proper divisors (11461542991).

27505050545 is a wasteful number, since it uses less digits than its factorization.

27505050545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18641.

The product of its (nonzero) digits is 175000, while the sum is 38.

The spelling of 27505050545 in words is "twenty-seven billion, five hundred five million, fifty thousand, five hundred forty-five".