505575055523 has 16 divisors (see below), whose sum is σ = 519420128256. Its totient is φ = 491893234560.

The previous prime is 505575055471. The next prime is 505575055543. The reversal of 505575055523 is 325550575505.

It is a cyclic number.

It is not a de Polignac number, because 505575055523 - 2⁸ = 505575055267 is a prime.

It is a super-2 number, since 2×505575055523² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505575055543) 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, 14878733 + ... + 14912673.

It is an arithmetic number, because the mean of its divisors is an integer number (32463758016).

Almost surely, 2^505575055523 is an apocalyptic number.

505575055523 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

505575055523 is a deficient number, since it is larger than the sum of its proper divisors (13845072733).

505575055523 is a wasteful number, since it uses less digits than its factorization.

505575055523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36334.

The product of its (nonzero) digits is 3281250, while the sum is 47.

The spelling of 505575055523 in words is "five hundred five billion, five hundred seventy-five million, fifty-five thousand, five hundred twenty-three".