503675521 has 2 divisors, whose sum is σ = 503675522. Its totient is φ = 503675520.

The previous prime is 503675489. The next prime is 503675527. The reversal of 503675521 is 125576305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347300496 + 156375025 = 18636^2 + 12505^2 .

It is a cyclic number.

It is not a de Polignac number, because 503675521 - 2⁵ = 503675489 is a prime.

It is a super-3 number, since 3×503675521³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (503675527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251837760 + 251837761.

It is an arithmetic number, because the mean of its divisors is an integer number (251837761).

Almost surely, 2^503675521 is an apocalyptic number.

It is an amenable number.

503675521 is a deficient number, since it is larger than the sum of its proper divisors (1).

503675521 is an equidigital number, since it uses as much as digits as its factorization.

503675521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 503675521 is about 22442.7164354051. The cubic root of 503675521 is about 795.6406217803.

The spelling of 503675521 in words is "five hundred three million, six hundred seventy-five thousand, five hundred twenty-one".