533545 has 8 divisors (see below), whose sum is σ = 678024. Its totient is φ = 401664.

The previous prime is 533543. The next prime is 533549. The reversal of 533545 is 545335.

533545 = 516² + 517².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 267289 + 266256 = 517^2 + 516^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 533545 - 2¹ = 533543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (533543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3054 + ... + 3223.

It is an arithmetic number, because the mean of its divisors is an integer number (84753).

2⁵³³⁵⁴⁵ is an apocalyptic number.

533545 is the 517-th centered square number.

It is an amenable number.

533545 is a deficient number, since it is larger than the sum of its proper divisors (144479).

533545 is a wasteful number, since it uses less digits than its factorization.

533545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299.

The product of its digits is 4500, while the sum is 25.

The square root of 533545 is about 730.4416472245. The cubic root of 533545 is about 81.1067535172.

The spelling of 533545 in words is "five hundred thirty-three thousand, five hundred forty-five".