505556055051 has 16 divisors (see below), whose sum is σ = 676480598304. Its totient is φ = 335836399104.

The previous prime is 505556055029. The next prime is 505556055061. The reversal of 505556055051 is 150550655505.

It is not a de Polignac number, because 505556055051 - 2¹⁰ = 505556054027 is a prime.

It is a super-2 number, since 2×505556055051² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505556054994 and 505556055012.

It is not an unprimeable number, because it can be changed into a prime (505556055061) 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, 791145 + ... + 1279461.

It is an arithmetic number, because the mean of its divisors is an integer number (42280037394).

Almost surely, 2^505556055051 is an apocalyptic number.

505556055051 is a deficient number, since it is larger than the sum of its proper divisors (170924543253).

505556055051 is a wasteful number, since it uses less digits than its factorization.

505556055051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489550.

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 505556055051 in words is "five hundred five billion, five hundred fifty-six million, fifty-five thousand, fifty-one".