275528055553 has 4 divisors (see below), whose sum is σ = 277510271920. Its totient is φ = 273545839188.

The previous prime is 275528055503. The next prime is 275528055589. The reversal of 275528055553 is 355550825572.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 275528055553 - 2²⁹ = 274991184641 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 275528055553.

It is not an unprimeable number, because it can be changed into a prime (275528055503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991107975 + ... + 991108252.

It is an arithmetic number, because the mean of its divisors is an integer number (69377567980).

Almost surely, 2^275528055553 is an apocalyptic number.

It is an amenable number.

275528055553 is a deficient number, since it is larger than the sum of its proper divisors (1982216367).

275528055553 is a wasteful number, since it uses less digits than its factorization.

275528055553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982216366.

The product of its (nonzero) digits is 10500000, while the sum is 52.

The spelling of 275528055553 in words is "two hundred seventy-five billion, five hundred twenty-eight million, fifty-five thousand, five hundred fifty-three".