537613 has 4 divisors (see below), whose sum is σ = 540540. Its totient is φ = 534688.

The previous prime is 537611. The next prime is 537637. The reversal of 537613 is 316735.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316735 = 5 ⋅63347.

It can be written as a sum of positive squares in 2 ways, for example, as 522729 + 14884 = 723^2 + 122^2 .

It is a cyclic number.

It is not a de Polignac number, because 537613 - 2¹ = 537611 is a prime.

It is a d-powerful number, because it can be written as 5⁷ + 3 + 6⁷ + 7⁴ + 1 + 3¹¹ .

It is a Duffinian number.

537613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (135135).

2⁵³⁷⁶¹³ is an apocalyptic number.

It is an amenable number.

537613 is a deficient number, since it is larger than the sum of its proper divisors (2927).

537613 is a wasteful number, since it uses less digits than its factorization.

537613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926.

The product of its digits is 1890, while the sum is 25.

The square root of 537613 is about 733.2209762411. The cubic root of 537613 is about 81.3123639542.

The spelling of 537613 in words is "five hundred thirty-seven thousand, six hundred thirteen".