545450 has 12 divisors (see below), whose sum is σ = 1014630. Its totient is φ = 218160.

The previous prime is 545449. The next prime is 545473. The reversal of 545450 is 54545.

It can be written as a sum of positive squares in 3 ways, for example, as 332929 + 212521 = 577^2 + 461^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5405 + ... + 5504.

2⁵⁴⁵⁴⁵⁰ is an apocalyptic number.

545450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545450 is a deficient number, since it is larger than the sum of its proper divisors (469180).

545450 is a wasteful number, since it uses less digits than its factorization.

545450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10921 (or 10916 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 545450 is about 738.5458685823. The cubic root of 545450 is about 81.7055671032.

Adding to 545450 its reverse (54545), we get a palindrome (599995).

The spelling of 545450 in words is "five hundred forty-five thousand, four hundred fifty".