502990080521 has 2 divisors, whose sum is σ = 502990080522. Its totient is φ = 502990080520.

The previous prime is 502990080499. The next prime is 502990080533. The reversal of 502990080521 is 125080099205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261652710400 + 241337370121 = 511520^2 + 491261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-502990080521 is a prime.

It is a super-2 number, since 2×502990080521² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (502990080221) 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 as a sum of consecutive naturals, namely, 251495040260 + 251495040261.

It is an arithmetic number, because the mean of its divisors is an integer number (251495040261).

Almost surely, 2^502990080521 is an apocalyptic number.

It is an amenable number.

502990080521 is a deficient number, since it is larger than the sum of its proper divisors (1).

502990080521 is an equidigital number, since it uses as much as digits as its factorization.

502990080521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 502990080521 in words is "five hundred two billion, nine hundred ninety million, eighty thousand, five hundred twenty-one".