27800053530 has 32 divisors (see below), whose sum is σ = 67407971904. Its totient is φ = 7336920576.

The previous prime is 27800053529. The next prime is 27800053543. The reversal of 27800053530 is 3535000872.

It is a junction number, because it is equal to n+sod(n) for n = 27800053491 and 27800053500.

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, 4773732 + ... + 4779551.

It is an arithmetic number, because the mean of its divisors is an integer number (2106499122).

Almost surely, 2^27800053530 is an apocalyptic number.

27800053530 is an abundant number, since it is smaller than the sum of its proper divisors (39607918374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27800053530 is a wasteful number, since it uses less digits than its factorization.

27800053530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9553390.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 27800053530 in words is "twenty-seven billion, eight hundred million, fifty-three thousand, five hundred thirty".