545578 has 8 divisors (see below), whose sum is σ = 892800. Its totient is φ = 247980.

The previous prime is 545551. The next prime is 545579. The reversal of 545578 is 875545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (545579) 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, 12378 + ... + 12421.

It is an arithmetic number, because the mean of its divisors is an integer number (111600).

2⁵⁴⁵⁵⁷⁸ is an apocalyptic number.

545578 is a deficient number, since it is larger than the sum of its proper divisors (347222).

545578 is a wasteful number, since it uses less digits than its factorization.

545578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24812.

The product of its digits is 28000, while the sum is 34.

The square root of 545578 is about 738.6325202697. The cubic root of 545578 is about 81.7119578476.

The spelling of 545578 in words is "five hundred forty-five thousand, five hundred seventy-eight".