537531 has 8 divisors (see below), whose sum is σ = 720720. Its totient is φ = 356352.

The previous prime is 537527. The next prime is 537547. The reversal of 537531 is 135735.

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

It is not a de Polignac number, because 537531 - 2² = 537527 is a prime.

It is a super-2 number, since 2×537531² = 577879151922, which contains 22 as substring.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (537331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (90090).

2⁵³⁷⁵³¹ is an apocalyptic number.

537531 is a deficient number, since it is larger than the sum of its proper divisors (183189).

537531 is a wasteful number, since it uses less digits than its factorization.

537531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005.

The product of its digits is 1575, while the sum is 24.

The square root of 537531 is about 733.1650564505. The cubic root of 537531 is about 81.3082296588.

The spelling of 537531 in words is "five hundred thirty-seven thousand, five hundred thirty-one".