537283661 has 8 divisors (see below), whose sum is σ = 561638400. Its totient is φ = 513367920.

The previous prime is 537283633. The next prime is 537283687. The reversal of 537283661 is 166382735.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537283661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537283961) 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, 107246 + ... + 112143.

It is an arithmetic number, because the mean of its divisors is an integer number (70204800).

Almost surely, 2^537283661 is an apocalyptic number.

It is an amenable number.

537283661 is a deficient number, since it is larger than the sum of its proper divisors (24354739).

537283661 is a wasteful number, since it uses less digits than its factorization.

537283661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219499.

The product of its digits is 181440, while the sum is 41.

The square root of 537283661 is about 23179.3800823059. The cubic root of 537283661 is about 812.9575671519.

The spelling of 537283661 in words is "five hundred thirty-seven million, two hundred eighty-three thousand, six hundred sixty-one".