505355302545 has 16 divisors (see below), whose sum is σ = 808642541760. Its totient is φ = 269498142144.

The previous prime is 505355302541. The next prime is 505355302553. The reversal of 505355302545 is 545203553505.

It is a happy number.

It is not a de Polignac number, because 505355302545 - 2² = 505355302541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505355302497 and 505355302506.

It is not an unprimeable number, because it can be changed into a prime (505355302541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1373035 + ... + 1701744.

It is an arithmetic number, because the mean of its divisors is an integer number (50540158860).

Almost surely, 2^505355302545 is an apocalyptic number.

It is an amenable number.

505355302545 is a deficient number, since it is larger than the sum of its proper divisors (303287239215).

505355302545 is a wasteful number, since it uses less digits than its factorization.

505355302545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085744.

The product of its (nonzero) digits is 1125000, while the sum is 42.

The spelling of 505355302545 in words is "five hundred five billion, three hundred fifty-five million, three hundred two thousand, five hundred forty-five".