541505 has 4 divisors (see below), whose sum is σ = 649812. Its totient is φ = 433200.

The previous prime is 541483. The next prime is 541507. The reversal of 541505 is 505145.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 368449 + 173056 = 607^2 + 416^2 .

It is not a de Polignac number, because 541505 - 2⁸ = 541249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541507) 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, 54146 + ... + 54155.

It is an arithmetic number, because the mean of its divisors is an integer number (162453).

2⁵⁴¹⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

541505 is a deficient number, since it is larger than the sum of its proper divisors (108307).

541505 is a wasteful number, since it uses less digits than its factorization.

541505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108306.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 541505 is about 735.8702331254. The cubic root of 541505 is about 81.5081101493.

The spelling of 541505 in words is "five hundred forty-one thousand, five hundred five".