505500020223503 has 2 divisors, whose sum is σ = 505500020223504. Its totient is φ = 505500020223502.

The previous prime is 505500020223469. The next prime is 505500020223547. The reversal of 505500020223503 is 305322020005505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505500020223503 - 2¹⁸ = 505500019961359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505500020223503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505500020223553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252750010111751 + 252750010111752.

It is an arithmetic number, because the mean of its divisors is an integer number (252750010111752).

Almost surely, 2^{505500020223503} is an apocalyptic number.

505500020223503 is a deficient number, since it is larger than the sum of its proper divisors (1).

505500020223503 is an equidigital number, since it uses as much as digits as its factorization.

505500020223503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 32.

The spelling of 505500020223503 in words is "five hundred five trillion, five hundred billion, twenty million, two hundred twenty-three thousand, five hundred three".