545225533 has 4 divisors (see below), whose sum is σ = 545274268. Its totient is φ = 545176800.

The previous prime is 545225519. The next prime is 545225561. The reversal of 545225533 is 335522545.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 477772164 + 67453369 = 21858^2 + 8213^2 .

It is a cyclic number.

It is not a de Polignac number, because 545225533 - 2¹³ = 545217341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545225633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735 + ... + 33067.

It is an arithmetic number, because the mean of its divisors is an integer number (136318567).

Almost surely, 2^545225533 is an apocalyptic number.

It is an amenable number.

545225533 is a deficient number, since it is larger than the sum of its proper divisors (48735).

545225533 is a wasteful number, since it uses less digits than its factorization.

545225533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48734.

The product of its digits is 90000, while the sum is 34.

The square root of 545225533 is about 23350.0649463765. The cubic root of 545225533 is about 816.9435756978.

The spelling of 545225533 in words is "five hundred forty-five million, two hundred twenty-five thousand, five hundred thirty-three".