497351521 has 16 divisors (see below), whose sum is σ = 524458368. Its totient is φ = 471139200.

The previous prime is 497351513. The next prime is 497351527. The reversal of 497351521 is 125153794.

It is the 9105-th star number.

It is a cyclic number.

It is not a de Polignac number, because 497351521 - 2³ = 497351513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497351527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216901 + ... + 219181.

It is an arithmetic number, because the mean of its divisors is an integer number (32778648).

Almost surely, 2^497351521 is an apocalyptic number.

It is an amenable number.

497351521 is a deficient number, since it is larger than the sum of its proper divisors (27106847).

497351521 is a wasteful number, since it uses less digits than its factorization.

497351521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its digits is 37800, while the sum is 37.

The square root of 497351521 is about 22301.3793519594. The cubic root of 497351521 is about 792.2966448419.

The spelling of 497351521 in words is "four hundred ninety-seven million, three hundred fifty-one thousand, five hundred twenty-one".