537663569 has 4 divisors (see below), whose sum is σ = 537768000. Its totient is φ = 537559140.

The previous prime is 537663559. The next prime is 537663589. The reversal of 537663569 is 965366735.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537663569 is a prime.

It is a super-2 number, since 2×537663569² = 578164226859635522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (537663559) 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, 44069 + ... + 54930.

It is an arithmetic number, because the mean of its divisors is an integer number (134442000).

Almost surely, 2^537663569 is an apocalyptic number.

It is an amenable number.

537663569 is a deficient number, since it is larger than the sum of its proper divisors (104431).

537663569 is an equidigital number, since it uses as much as digits as its factorization.

537663569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104430.

The product of its digits is 3061800, while the sum is 50.

The square root of 537663569 is about 23187.5735901797. The cubic root of 537663569 is about 813.1491334447.

The spelling of 537663569 in words is "five hundred thirty-seven million, six hundred sixty-three thousand, five hundred sixty-nine".