537517643 has 16 divisors (see below), whose sum is σ = 586842816. Its totient is φ = 489369600.

The previous prime is 537517637. The next prime is 537517663. The reversal of 537517643 is 346715735.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 537517643 - 2⁶ = 537517579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 537517643.

It is not an unprimeable number, because it can be changed into a prime (537517663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505130 + ... + 506192.

It is an arithmetic number, because the mean of its divisors is an integer number (36677676).

Almost surely, 2^537517643 is an apocalyptic number.

537517643 is a deficient number, since it is larger than the sum of its proper divisors (49325173).

537517643 is a wasteful number, since it uses less digits than its factorization.

537517643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574.

The product of its digits is 264600, while the sum is 41.

The square root of 537517643 is about 23184.4267343404. The cubic root of 537517643 is about 813.0755618261.

The spelling of 537517643 in words is "five hundred thirty-seven million, five hundred seventeen thousand, six hundred forty-three".