545535 has 24 divisors (see below), whose sum is σ = 982800. Its totient is φ = 290304.

The previous prime is 545533. The next prime is 545543. The reversal of 545535 is 535545.

It is not a de Polignac number, because 545535 - 2¹ = 545533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 545499 and 545508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 991 + ... + 1439.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2⁵⁴⁵⁵³⁵ is an apocalyptic number.

545535 is a deficient number, since it is larger than the sum of its proper divisors (437265).

545535 is an equidigital number, since it uses as much as digits as its factorization.

545535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 457 counting only the distinct ones).

The product of its digits is 7500, while the sum is 27.

The square root of 545535 is about 738.6034118524. The cubic root of 545535 is about 81.7098110684.

The spelling of 545535 in words is "five hundred forty-five thousand, five hundred thirty-five".