545547 has 16 divisors (see below), whose sum is σ = 812160. Its totient is φ = 323712.

The previous prime is 545543. The next prime is 545549. The reversal of 545547 is 745545.

It is not a de Polignac number, because 545547 - 2² = 545543 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545547.

It is not an unprimeable number, because it can be changed into a prime (545543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688 + ... + 1250.

It is an arithmetic number, because the mean of its divisors is an integer number (50760).

2⁵⁴⁵⁵⁴⁷ is an apocalyptic number.

545547 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

545547 is a deficient number, since it is larger than the sum of its proper divisors (266613).

545547 is a wasteful number, since it uses less digits than its factorization.

545547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602.

The product of its digits is 14000, while the sum is 30.

The square root of 545547 is about 738.6115352470. The cubic root of 545547 is about 81.7104101809.

The spelling of 545547 in words is "five hundred forty-five thousand, five hundred forty-seven".