537501321 has 12 divisors (see below), whose sum is σ = 887303872. Its totient is φ = 307143576.

The previous prime is 537501287. The next prime is 537501361. The reversal of 537501321 is 123105735.

It is not a de Polignac number, because 537501321 - 2⁹ = 537500809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (537501361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4265821 + ... + 4265946.

Almost surely, 2^537501321 is an apocalyptic number.

It is an amenable number.

537501321 is a deficient number, since it is larger than the sum of its proper divisors (349802551).

537501321 is a wasteful number, since it uses less digits than its factorization.

537501321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531780 (or 8531777 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 537501321 is about 23184.0747281404. The cubic root of 537501321 is about 813.0673319234.

The spelling of 537501321 in words is "five hundred thirty-seven million, five hundred one thousand, three hundred twenty-one".