505355555356 has 48 divisors (see below), whose sum is σ = 898036070400. Its totient is φ = 248792648832.

The previous prime is 505355555351. The next prime is 505355555377. The reversal of 505355555356 is 653555553505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505355555351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247843785 + ... + 247845823.

It is an arithmetic number, because the mean of its divisors is an integer number (18709084800).

Almost surely, 2^505355555356 is an apocalyptic number.

It is an amenable number.

505355555356 is a deficient number, since it is larger than the sum of its proper divisors (392680515044).

505355555356 is a wasteful number, since it uses less digits than its factorization.

505355555356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898 (or 3896 counting only the distinct ones).

The product of its (nonzero) digits is 21093750, while the sum is 52.

The spelling of 505355555356 in words is "five hundred five billion, three hundred fifty-five million, five hundred fifty-five thousand, three hundred fifty-six".