505550000477 has 2 divisors, whose sum is σ = 505550000478. Its totient is φ = 505550000476.

The previous prime is 505550000447. The next prime is 505550000507. The reversal of 505550000477 is 774000055505.

It is a balanced prime because it is at equal distance from previous prime (505550000447) and next prime (505550000507).

It can be written as a sum of positive squares in only one way, i.e., 440562735001 + 64987265476 = 663749^2 + 254926^2 .

It is a cyclic number.

It is not a de Polignac number, because 505550000477 - 2¹⁰ = 505549999453 is a prime.

It is a super-3 number, since 3×505550000477³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505550000477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505550000447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252775000238 + 252775000239.

It is an arithmetic number, because the mean of its divisors is an integer number (252775000239).

Almost surely, 2^505550000477 is an apocalyptic number.

It is an amenable number.

505550000477 is a deficient number, since it is larger than the sum of its proper divisors (1).

505550000477 is an equidigital number, since it uses as much as digits as its factorization.

505550000477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122500, while the sum is 38.

The spelling of 505550000477 in words is "five hundred five billion, five hundred fifty million, four hundred seventy-seven", and thus it is an aban number.