545516 has 6 divisors (see below), whose sum is σ = 954660. Its totient is φ = 272756.

The previous prime is 545497. The next prime is 545521. The reversal of 545516 is 615545.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545516.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68186 + ... + 68193.

It is an arithmetic number, because the mean of its divisors is an integer number (159110).

2⁵⁴⁵⁵¹⁶ is an apocalyptic number.

It is an amenable number.

545516 is a deficient number, since it is larger than the sum of its proper divisors (409144).

545516 is a wasteful number, since it uses less digits than its factorization.

545516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136383 (or 136381 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 545516 is about 738.5905496281. The cubic root of 545516 is about 81.7088624556.

Subtracting from 545516 its sum of digits (26), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 545516 in words is "five hundred forty-five thousand, five hundred sixteen".