505305552775 has 24 divisors (see below), whose sum is σ = 647498651184. Its totient is φ = 390933984000.

The previous prime is 505305552737. The next prime is 505305552781. The reversal of 505305552775 is 577255503505.

It is not a de Polignac number, because 505305552775 - 2¹⁵ = 505305520007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2218414 + ... + 2435563.

It is an arithmetic number, because the mean of its divisors is an integer number (26979110466).

Almost surely, 2^505305552775 is an apocalyptic number.

505305552775 is a deficient number, since it is larger than the sum of its proper divisors (142193098409).

505305552775 is a wasteful number, since it uses less digits than its factorization.

505305552775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654131 (or 4654126 counting only the distinct ones).

The product of its (nonzero) digits is 4593750, while the sum is 49.

The spelling of 505305552775 in words is "five hundred five billion, three hundred five million, five hundred fifty-two thousand, seven hundred seventy-five".