537506 has 8 divisors (see below), whose sum is σ = 853740. Its totient is φ = 252928.

The previous prime is 537497. The next prime is 537527. The reversal of 537506 is 605735.

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 11881 = 725^2 + 109^2 .

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

It is a Curzon number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7871 + ... + 7938.

2⁵³⁷⁵⁰⁶ is an apocalyptic number.

537506 is a deficient number, since it is larger than the sum of its proper divisors (316234).

537506 is a wasteful number, since it uses less digits than its factorization.

537506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15828.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 537506 is about 733.1480068854. The cubic root of 537506 is about 81.3069691193.

The spelling of 537506 in words is "five hundred thirty-seven thousand, five hundred six".