537213252173 has 16 divisors (see below), whose sum is σ = 587120108400. Its totient is φ = 488572170240.

The previous prime is 537213252113. The next prime is 537213252227. The reversal of 537213252173 is 371252312735.

It can be written as a sum of positive squares in 8 ways, for example, as 187858964329 + 349354287844 = 433427^2 + 591062^2 .

It is a cyclic number.

It is not a de Polignac number, because 537213252173 - 2⁸ = 537213251917 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 537213252173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537213252113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501068 + ... + 1151301.

It is an arithmetic number, because the mean of its divisors is an integer number (36695006775).

Almost surely, 2^537213252173 is an apocalyptic number.

It is an amenable number.

537213252173 is a deficient number, since it is larger than the sum of its proper divisors (49906856227).

537213252173 is a wasteful number, since it uses less digits than its factorization.

537213252173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652752.

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

The spelling of 537213252173 in words is "five hundred thirty-seven billion, two hundred thirteen million, two hundred fifty-two thousand, one hundred seventy-three".