505050505505 has 64 divisors (see below), whose sum is σ = 791038338048. Its totient is φ = 300403261440.

The previous prime is 505050505489. The next prime is 505050505543. The reversal of 505050505505 is 505505050505.

It is not a de Polignac number, because 505050505505 - 2⁴ = 505050505489 is a prime.

It is a super-2 number, since 2×505050505505² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 4907204 + ... + 5009066.

It is an arithmetic number, because the mean of its divisors is an integer number (12359974032).

Almost surely, 2^505050505505 is an apocalyptic number.

It is an amenable number.

505050505505 is a deficient number, since it is larger than the sum of its proper divisors (285987832543).

505050505505 is a wasteful number, since it uses less digits than its factorization.

505050505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102546.

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 505050505505 in words is "five hundred five billion, fifty million, five hundred five thousand, five hundred five".