501055510477 has 2 divisors, whose sum is σ = 501055510478. Its totient is φ = 501055510476.

The previous prime is 501055510379. The next prime is 501055510507. The reversal of 501055510477 is 774015550105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402325072681 + 98730437796 = 634291^2 + 314214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501055510477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501055511477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250527755238 + 250527755239.

It is an arithmetic number, because the mean of its divisors is an integer number (250527755239).

Almost surely, 2^501055510477 is an apocalyptic number.

It is an amenable number.

501055510477 is a deficient number, since it is larger than the sum of its proper divisors (1).

501055510477 is an equidigital number, since it uses as much as digits as its factorization.

501055510477 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 40.

The spelling of 501055510477 in words is "five hundred one billion, fifty-five million, five hundred ten thousand, four hundred seventy-seven".