537565 has 8 divisors (see below), whose sum is σ = 737280. Its totient is φ = 368592.

The previous prime is 537547. The next prime is 537569. The reversal of 537565 is 565735.

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

It is not a de Polignac number, because 537565 - 2¹⁵ = 504797 is a prime.

It is a super-2 number, since 2×537565² = 577952258450, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537569) 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, 7645 + ... + 7714.

It is an arithmetic number, because the mean of its divisors is an integer number (92160).

2⁵³⁷⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

537565 is a deficient number, since it is larger than the sum of its proper divisors (199715).

537565 is a wasteful number, since it uses less digits than its factorization.

537565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15371.

The product of its digits is 15750, while the sum is 31.

The square root of 537565 is about 733.1882432227. The cubic root of 537565 is about 81.3099439299.

The spelling of 537565 in words is "five hundred thirty-seven thousand, five hundred sixty-five".