545850 has 36 divisors (see below), whose sum is σ = 1467726. Its totient is φ = 145440.

The previous prime is 545843. The next prime is 545863. The reversal of 545850 is 58545.

It can be written as a sum of positive squares in 3 ways, for example, as 251001 + 294849 = 501^2 + 543^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 545850.

It is an unprimeable number.

545850 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 157 + ... + 1056.

2⁵⁴⁵⁸⁵⁰ is an apocalyptic number.

545850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545850 is an abundant number, since it is smaller than the sum of its proper divisors (921876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545850 is a wasteful number, since it uses less digits than its factorization.

545850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 545850 is about 738.8166213615. The cubic root of 545850 is about 81.7255348613.

The spelling of 545850 in words is "five hundred forty-five thousand, eight hundred fifty".