537011809 has 8 divisors (see below), whose sum is σ = 550442088. Its totient is φ = 523597440.

The previous prime is 537011807. The next prime is 537011819. The reversal of 537011809 is 908110735.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23309584 + 513702225 = 4828^2 + 22665^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 537011809 - 2¹ = 537011807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (537011803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93859 + ... + 99415.

It is an arithmetic number, because the mean of its divisors is an integer number (68805261).

Almost surely, 2^537011809 is an apocalyptic number.

It is an amenable number.

537011809 is a deficient number, since it is larger than the sum of its proper divisors (13430279).

537011809 is a wasteful number, since it uses less digits than its factorization.

537011809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 537011809 is about 23173.5152490942. The cubic root of 537011809 is about 812.8204320026.

The spelling of 537011809 in words is "five hundred thirty-seven million, eleven thousand, eight hundred nine".