537493013 has 4 divisors (see below), whose sum is σ = 542814828. Its totient is φ = 532171200.

The previous prime is 537493001. The next prime is 537493031. The reversal of 537493013 is 310394735.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 472497169 + 64995844 = 21737^2 + 8062^2 .

It is a cyclic number.

It is not a de Polignac number, because 537493013 - 2²⁰ = 536444437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537493093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2660756 + ... + 2660957.

It is an arithmetic number, because the mean of its divisors is an integer number (135703707).

Almost surely, 2^537493013 is an apocalyptic number.

It is an amenable number.

537493013 is a deficient number, since it is larger than the sum of its proper divisors (5321815).

537493013 is a wasteful number, since it uses less digits than its factorization.

537493013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321814.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 537493013 is about 23183.8955527323. The cubic root of 537493013 is about 813.0631427875.

The spelling of 537493013 in words is "five hundred thirty-seven million, four hundred ninety-three thousand, thirteen".