545670533 has 4 divisors (see below), whose sum is σ = 545724480. Its totient is φ = 545616588.

The previous prime is 545670523. The next prime is 545670553. The reversal of 545670533 is 335076545.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 545670533 - 2¹² = 545666437 is a prime.

It is a deceptive number, since it divides R_545670532.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545670523) 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, 6743 + ... + 33716.

It is an arithmetic number, because the mean of its divisors is an integer number (136431120).

Almost surely, 2^545670533 is an apocalyptic number.

545670533 is the 13487-th octagonal number.

It is an amenable number.

545670533 is a deficient number, since it is larger than the sum of its proper divisors (53947).

545670533 is a wasteful number, since it uses less digits than its factorization.

545670533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53946.

The product of its (nonzero) digits is 189000, while the sum is 38.

The square root of 545670533 is about 23359.5918842774. The cubic root of 545670533 is about 817.1657718410.

The spelling of 545670533 in words is "five hundred forty-five million, six hundred seventy thousand, five hundred thirty-three".