506546 has 4 divisors (see below), whose sum is σ = 759822. Its totient is φ = 253272.

The previous prime is 506537. The next prime is 506551. The reversal of 506546 is 645605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645605 = 5 ⋅129121.

It can be written as a sum of positive squares in only one way, i.e., 373321 + 133225 = 611^2 + 365^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126635 + ... + 126638.

2⁵⁰⁶⁵⁴⁶ is an apocalyptic number.

506546 is a deficient number, since it is larger than the sum of its proper divisors (253276).

506546 is a wasteful number, since it uses less digits than its factorization.

506546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253275.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 506546 is about 711.7204507389. The cubic root of 506546 is about 79.7149228444.

The spelling of 506546 in words is "five hundred six thousand, five hundred forty-six".