545233553 has 4 divisors (see below), whose sum is σ = 564034740. Its totient is φ = 526432368.

The previous prime is 545233543. The next prime is 545233567. The reversal of 545233553 is 355332545.

545233553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 379158784 + 166074769 = 19472^2 + 12887^2 .

It is a cyclic number.

It is not a de Polignac number, because 545233553 - 2¹⁰ = 545232529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545233523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9400550 + ... + 9400607.

It is an arithmetic number, because the mean of its divisors is an integer number (141008685).

Almost surely, 2^545233553 is an apocalyptic number.

It is an amenable number.

545233553 is a deficient number, since it is larger than the sum of its proper divisors (18801187).

545233553 is a wasteful number, since it uses less digits than its factorization.

545233553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18801186.

The product of its digits is 135000, while the sum is 35.

The square root of 545233553 is about 23350.2366797427. The cubic root of 545233553 is about 816.9475812912.

The spelling of 545233553 in words is "five hundred forty-five million, two hundred thirty-three thousand, five hundred fifty-three".