275811055500 has 48 divisors (see below), whose sum is σ = 803161797984. Its totient is φ = 73549614400.

The previous prime is 275811055459. The next prime is 275811055511. The reversal of 275811055500 is 5550118572.

It is a happy number.

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, 91935519 + ... + 91938518.

It is an arithmetic number, because the mean of its divisors is an integer number (16732537458).

Almost surely, 2^275811055500 is an apocalyptic number.

275811055500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275811055500 is an abundant number, since it is smaller than the sum of its proper divisors (527350742484).

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

275811055500 is a wasteful number, since it uses less digits than its factorization.

275811055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183874059 (or 183874047 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 39.

The spelling of 275811055500 in words is "two hundred seventy-five billion, eight hundred eleven million, fifty-five thousand, five hundred".