505545659963 has 2 divisors, whose sum is σ = 505545659964. Its totient is φ = 505545659962.

The previous prime is 505545659951. The next prime is 505545660157. The reversal of 505545659963 is 369956545505.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505545659963 is a prime.

It is a super-2 number, since 2×505545659963² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505545659896 and 505545659905.

It is not a weakly prime, because it can be changed into another prime (505545659933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252772829981 + 252772829982.

It is an arithmetic number, because the mean of its divisors is an integer number (252772829982).

Almost surely, 2^505545659963 is an apocalyptic number.

505545659963 is a deficient number, since it is larger than the sum of its proper divisors (1).

505545659963 is an equidigital number, since it uses as much as digits as its factorization.

505545659963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109350000, while the sum is 62.

The spelling of 505545659963 in words is "five hundred five billion, five hundred forty-five million, six hundred fifty-nine thousand, nine hundred sixty-three".