505055055507 has 4 divisors (see below), whose sum is σ = 673406740680. Its totient is φ = 336703370336.

The previous prime is 505055055451. The next prime is 505055055509. The reversal of 505055055507 is 705550550505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505055055507 - 2¹⁴ = 505055039123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505055055509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84175842582 + ... + 84175842587.

It is an arithmetic number, because the mean of its divisors is an integer number (168351685170).

Almost surely, 2^505055055507 is an apocalyptic number.

505055055507 is a deficient number, since it is larger than the sum of its proper divisors (168351685173).

505055055507 is a wasteful number, since it uses less digits than its factorization.

505055055507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168351685172.

The product of its (nonzero) digits is 546875, while the sum is 42.

The spelling of 505055055507 in words is "five hundred five billion, fifty-five million, fifty-five thousand, five hundred seven".